[go: up one dir, main page]

CN109619753B - Anti-skid shoes - Google Patents

Anti-skid shoes Download PDF

Info

Publication number
CN109619753B
CN109619753B CN201910092429.0A CN201910092429A CN109619753B CN 109619753 B CN109619753 B CN 109619753B CN 201910092429 A CN201910092429 A CN 201910092429A CN 109619753 B CN109619753 B CN 109619753B
Authority
CN
China
Prior art keywords
sole
slip
skid
shoe
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201910092429.0A
Other languages
Chinese (zh)
Other versions
CN109619753A (en
Inventor
薛冰寒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201910092429.0A priority Critical patent/CN109619753B/en
Publication of CN109619753A publication Critical patent/CN109619753A/en
Application granted granted Critical
Publication of CN109619753B publication Critical patent/CN109619753B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00Footwear characterised by the shape or the use
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00Non-skid devices or attachments
    • A43C15/02Non-skid devices or attachments attached to the sole

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

本发明涉及生活用品技术领域,具体涉及一种防滑鞋。本发明提供的一种防滑鞋,包括鞋底的左右两侧设有的调整装置,调整装置用于控制和调整设置在鞋底内部的第一防滑部和第二防滑部;调整装置设置在鞋底的在前脚掌的位置,鞋底的上鞋底和下鞋底之间设有中空的内腔,第一防滑部和第二防滑部的工作部能分别从第一通孔和第二通孔穿出与地面接触实现防滑。本发明通过在鞋底上设置的防滑部和调整装置配合使用,实现和提高了在雨雪天气或在潮湿的光滑路面安全行走的目的。

Figure 201910092429

The invention relates to the technical field of daily necessities, in particular to a non-slip shoe. An anti-skid shoe provided by the present invention includes adjustment devices provided on the left and right sides of the sole, the adjustment device is used to control and adjust the first anti-slip portion and the second anti-slip portion arranged inside the sole; the adjustment device is arranged on the bottom of the sole. The position of the forefoot, a hollow inner cavity is arranged between the upper sole and the lower sole of the sole, and the working parts of the first anti-skid part and the second anti-skid part can pass through the first through hole and the second through hole respectively to contact the ground Anti-slip. The present invention realizes and improves the purpose of safe walking in rainy and snowy weather or on wet and smooth road surfaces through the cooperative use of the anti-skid part provided on the sole and the adjusting device.

Figure 201910092429

Description

Anti-skid shoes
Technical Field
The invention belongs to the technical field of articles for daily use, and particularly relates to anti-skidding shoes.
Background
With the continuous expansion of urban scale, long-time outing becomes an indispensable mode for most people. When people go out, people often touch rainy and snowy weather, particularly winter in the north of China, the condition that the road surface is iced is more when people touch rainy and snowy weather, and people often lose the judgment of the real condition of the ground. Even when bad weather is not met, people often encounter the condition of walking on wet smooth road surfaces such as marble and granite, if carelessness is caused, the gravity center of people is lost and falls due to wet and slippery reasons when walking, the people can fall into serious injuries even if the people fall into serious injuries, and particularly the injuries to the old are larger.
Disclosure of Invention
In order to solve the technical problems, the invention provides an anti-skidding shoe, which aims to realize the purpose of safely walking in rainy and snowy weather or on wet and smooth road surfaces by matching two anti-skidding parts arranged on a sole with an adjusting device.
In order to achieve the purpose, the invention provides an anti-skid shoe, which comprises a vamp arranged in front of a shoe body and an upper arranged on the lower side, wherein the lower side of the upper is fixedly connected with a sole, a heel is arranged on the rear side of the sole, adjusting devices are arranged on the left side and the right side of the sole and used for controlling and adjusting a first anti-skid part and a second anti-skid part which are arranged in the sole, each adjusting device comprises a round shaft, two ends of each round shaft are provided with knobs, the round shafts penetrate through the sole, and flanges are arranged on the round shafts and used for overcoming the elasticity of springs;
the upper sole of the sole is fixedly connected with the upper, a hollow inner cavity is arranged between the upper sole and the lower sole at the position of the front sole, first through holes and second through holes are arranged on the lower sole at intervals, working parts of the first anti-skid part and the second anti-skid part can respectively penetrate through the first through holes and the second through holes and contact with the ground to realize contact anti-skid, a plurality of guide columns fixedly connected with the upper sole and the lower sole are arranged in the inner cavity, a structural plate capable of moving up and down is sleeved on the guide columns, and a plurality of springs fixedly mounted on the structural plate are fixedly connected with the upper sole through lifting hooks;
the structural plate comprises a first plate body arranged on the outer side and a second plate body arranged on the inner side, the second plate body is embedded on the first plate body in a staggered mode, a first groove formed in the first plate body is matched with a second flange on the circular shaft, and a second groove formed in the second plate body is matched with the first flange on the circular shaft;
the connecting column of the first anti-skid part is fixedly connected with the structural plate, and an anti-skid body is arranged on the lower side of the connecting column;
the anti-skid structure is characterized in that a sucker made of elastic materials is arranged on the second anti-skid portion, a stand column is arranged at the top of the sucker, and the stand column is fixedly connected to the structural plate.
According to the preferable technical scheme, the sucker is of a hemispherical structure, a second air passage is arranged in an upright column arranged at the top of the hemispherical structure, a one-way valve is arranged at the port of the second air passage, and the other end of the second air passage is communicated with the air bag through a hose.
According to the preferable technical scheme, the air bag is arranged at the front end of the vamp and corresponds to the position of the toes.
According to the preferable technical scheme, the anti-skid body is conical.
According to the preferable technical scheme, the anti-slip body is a prism, a cylinder or a ring.
According to the preferable technical scheme, a plurality of teeth which are uniformly arranged are arranged on the lower side of the triangular prism, the cylinder or the circular ring.
According to the preferable technical scheme, the first through hole is circular or elliptical, and the second through hole is rectangular.
Preferably, the second flange is arranged at an angle of 90 ° to the first flange.
In a preferred embodiment, the hose is arranged in a first air channel in the upper sole.
According to the preferable technical scheme, the air bag is provided with an air inlet one-way valve.
Compared with the prior art, the invention has the following beneficial effects:
1. the walking aid is simple in structure and convenient to operate, and effectively improves the walking safety of a user.
2. The invention can select or change a walking mode suitable for the user to travel according to the outdoor climate or the ground condition, and is used for improving the safety during walking.
Drawings
FIG. 1 is a perspective view of the exterior of the anti-slip shoe of the present invention;
FIG. 2 is a perspective view of the first operating condition of FIG. 1;
FIG. 3 is a perspective view of the second operating condition of FIG. 1;
FIG. 4 is a bottom view of the cleat of FIG. 1;
FIG. 5 is an inside view of the sole of the cleated shoe of FIG. 1;
fig. 6 is a structural view of the first plate and the second plate of fig. 5;
FIG. 7 is a block diagram of the lower sole of FIG. 5;
FIG. 8 is an internal structural view of the second antiskid portion of FIG. 5;
FIG. 9 is a perspective view of a first non-slip feature of FIG. 5;
FIG. 10 is a perspective view of an alternative construction of the first non-slip portion of FIG. 5;
fig. 11 is a perspective view showing another structure of the first non-slip portion of fig. 5.
Reference numerals
In the drawings, 1 — the upper; 2-shoe body; 3, shoe upper; 4-sole, 41-upper sole, 42-cavity, 43-guide post, 44-spring, 45-hose, 46-hook, 47-first air channel, 48-first plate, 49-second plate, 410-through hole; 411 — structural panels; 412-lower sole, 413-first recess, 414-first through hole, 415-second through hole, 416-second recess; 5, shoe heels; 6-adjusting device, 61-round shaft, 62-first flange, 63-second flange; 7-a first anti-slip part, 71-a connecting column, 72-an anti-slip body, 73-a spine; 8-a second antiskid part, 81-a sucker, 82-a column, 83-a second air channel, 84-a one-way valve; 9-air bag.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Examples
As shown in figure 1, the anti-slip shoe provided by the invention comprises a vamp 1 arranged in front of a shoe body 2 and an upper 3 arranged on the lower side, wherein the lower side of the upper 3 is fixedly connected with a sole 4, a heel 5 is arranged on the rear side of the sole 4, adjusting devices 6 are arranged on the left side and the right side of the sole 4, the adjusting devices 6 are used for controlling and adjusting a first anti-slip part 7 and a second anti-slip part 8 which are arranged inside the sole 4, the first anti-slip part 7 in the embodiment is of a spine structure, and the spine part is made of stainless steel materials and plays a role of rust prevention.
As shown in fig. 2, the working state of the first anti-skid part 7 is shown when it is extended; as shown in fig. 3, the second anti-slip part 8 is in a working state when it is extended; as shown in fig. 4, the first and second anti-slip parts 7 and 8 are in an operating state when they are not extended from the shoe sole 4.
As shown in fig. 5 and 6, the specific structure of the adjusting device 6 includes a circular shaft 61 with knobs at two ends, the circular shaft 61 penetrates out of the sole 4, a flange is arranged on the circular shaft 61 and plays a role in overcoming the elastic force of the spring 44, the flanges arranged on the circular shaft 61 are a second flange 63 and a first flange 62, respectively, and the second flange 63 and the first flange 62 are arranged at an angle of 90 degrees; the first groove 413 provided on the first plate 48 is adapted to the second flange 63 of the circular shaft 61, and the second groove 416 provided on the second plate 49 is adapted to the first flange 62 of the circular shaft 61. Wherein, the upper sole 41 of the sole 4 is fixedly connected with the upper 3. At the position of the front sole, a hollow cavity 42 is arranged between the sole 41 and the lower sole 412, a plurality of guide posts 43 fixedly connected with the upper sole 41 and the lower sole 412 are arranged in the cavity 42, a structural plate 411 capable of moving up and down is sleeved on the guide posts 43, a plurality of springs 44 are fixedly arranged on a first plate body 48 and a second plate body 49 on the structural plate 411 respectively, and the springs 44 are fixedly connected with the upper sole 41 through a lifting hook 46. Wherein, the connecting column 71 on the first antiskid part 7 is fixedly connected with the structural plate 411, and the lower side of the connecting column 71 is provided with an antiskid body 72.
As shown in fig. 6, the specific structure of the structural plate 411 includes a first plate 48 disposed on the outer side and a second plate 49 disposed on the inner side, and the first plate 48 and the second plate 49 are made of hard materials, such as steel plates or hard plastics. The second plate 49 is embedded in the first plate 48, the second plate 49 and the first plate 48 are arranged in a staggered manner, the first groove 413 formed in the first plate 48 is matched with the second flange 63 on the circular shaft 61, and the second groove 416 formed in the second plate 49 is matched and correspondingly used with the first flange 62 on the circular shaft 61.
As shown in FIG. 7, the lower sole 412 has a shape corresponding to the shoe body, and the lower sole 412 is provided with a first through hole 414 and a second through hole 415 at an interval. In this embodiment, the first through hole 414 has a circular or elliptical structure, the second through hole 415 has a rectangular or elliptical structure, and the working portions of the first anti-slip portion 7 and the second anti-slip portion 8, such as the spine structure or the suction cup, can respectively penetrate through the first through hole 414 and the second through hole 415 and contact with the ground to realize contact anti-slip.
As shown in fig. 8, the second anti-slip portion 8 includes a suction cup 81 made of an elastic material, in this embodiment, the second anti-slip portion 8 is made of a soft rubber material, and the suction cup 81 has a hemispherical suction cup structure, which can facilitate quick suction with a smooth ground. Wherein, the top of sucking disc 81 is equipped with stand 82, stand 82 fixed connection is on structural slab 411, and sucking disc 81 is the hemisphere type structure, is equipped with second air flue 83 in the stand 82 that hemisphere type structure top set up, and the port position of second air flue 83 is equipped with check valve 84, and the other end of second air flue 83 passes through hose 45 and gasbag 9 intercommunication. As shown in FIG. 5, in the preferred embodiment, the flexible tube 45 is disposed in the first air channel 47 in the upper sole 41, and the upper sole 41 made of hard material can protect the flexible tube 45 in the first air channel 47 from being deformed by treading, so as to affect the anti-slip effect of the suction cup 81.
In this embodiment, as shown in fig. 9, the antiskid body 72 is preferably conical, and the conical spikes can increase the friction force with the rain and snow ground, thereby playing the roles of antiskid and fixation.
In a preferred technical scheme, as shown in fig. 10 and 11, the anti-slip body 72 is a prism, a cylinder or a ring, wherein the lower surface of the anti-slip body 72 of the prism is in a shape of a blade, and the blade is perpendicular to the longitudinal line of the sole 4, so that the anti-slip sole plays a role in preventing slipping transversely when a user walks on the ground with ice or snow on rainy and snowy days. Wherein, the downside of prism, cylinder or ring type is equipped with the tooth 73 that a plurality of was evenly set up, and tooth 73 is used for playing horizontal and vertical two-way anti-skidding effect.
According to a preferable technical scheme, as shown in fig. 1, an air bag 9 is further arranged at a position, corresponding to the position of toes, of the front end of the vamp 1, a one-way air valve is arranged on the air bag 9, the one-way air valve is of a structure which only allows air to enter and does not allow air to exit, and the one-way air valve is used for supplementing air to the air bag 9. When the suction cup 81 is attached to a slippery floor such as marble, the user can lift the toes upwards, the toes apply pressure to the air cells 9, air in the air cells 9 enters the suction cup 81 through the check valve 84 on the hose 45, and the air enters the suction cup 81 to enable the suction cup 81 to be conveniently separated from the slippery floor. The user walks, when the sole falls down, the one-way valve 84 is closed, the bottom of the sucker 81 is fixed in contact with the smooth ground, the vacuum suction force generated by the sucker 81 can be quickly fixed in a suction manner with the smooth ground to play a role in fixing the anti-skid property, and the anti-skid property in the quick walking of the smooth road surfaces such as marble or granite can be realized by repeating the steps as follows, so that the user cannot fall down due to wet skid.
The anti-skid shoe provided by the invention has the specific use method as follows:
when a user goes out in rainy and snowy weather, the knobs at two ends of the round shaft 61 in the adjusting device 6 on the shoe are rotated, so that the second flange 63 on the round shaft 61 rotates and presses the first plate body 48 to be firmly clamped, meanwhile, the first plate body 48 downwards drives the first anti-skid part 7 to extend out of the lower sole 412, and the sharp pricks on the extending first anti-skid part 7 penetrate through snow or ice accumulated on the ground to be fixed with the ground, so that the anti-skid effect is achieved; when a user walks to a place without rain or snow, the knobs at the two ends of the round shaft 61 can be rotated to separate the highest point of the second flange 63 from the first groove 413 on the first plate body 48, the first plate body 48 is rapidly rebounded under the action of the spring 44, and the rebounded first anti-slip part 7 is not operated any more and is retracted into the lower sole 412.
When a user finds that walking on a marble or granite road is needed, particularly when water stains exist, and worry about falling down, the user rotates the knobs at two ends of the circular shaft 61 in the adjusting device 6, so that the first flange 62 on the circular shaft 61 presses down and presses the second plate body 49, the suction cup 81 on the second anti-skid part 8 stretches out of the lower sole 412, firm locking of clamping is carried out, the suction cup 81 is in contact with the ground on the marble or granite road, and the suction cup 81 plays a role in skid resistance. When a user lifts legs and walks, the toes of the user apply force to the air bags 9, air in the air bags 9 enters the suction cups 81 from the one-way valves 84 through the hoses 45, and the suction cups 81 are conveniently separated from the smooth ground. When the user walks on the road without marble or granite, the user rotates the knobs at the two ends of the circular shaft 61 again to disengage the first flange 62 on the circular shaft 61 from the second groove 416 on the second plate 49, and due to the spring 44 arranged on the second plate 49, the second plate 49 rebounds under the action of the spring 44 to retract the suction cups 81 on the second anti-slip part 8 from the lower sole 412, so that the user does not work any more.
The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples described above, and various changes can be made within the knowledge of those skilled in the art without departing from the concept of the present invention.

Claims (8)

1. An anti-skid shoe comprises a vamp (1) arranged in front of a shoe body (2) and an upper (3) arranged on the lower side, wherein the lower side of the upper (3) is fixedly connected with a sole (4), and a heel (5) is arranged on the rear side of the sole (4), the anti-skid shoe is characterized in that adjusting devices (6) are arranged on the left side and the right side of the sole (4), the adjusting devices (6) are used for controlling and adjusting a first anti-skid part (7) and a second anti-skid part (8) which are arranged inside the sole (4), each adjusting device (6) comprises a round shaft (61) of which two ends are provided with knobs and penetrate out of the sole (4), and flanges are arranged on the round shafts (61) and used for overcoming the elasticity of springs (44);
an upper sole (41) of the sole (4) is fixedly connected with an upper (3), a hollow inner cavity (42) is arranged between the upper sole (41) and a lower sole (412) at the front sole position, a first through hole (414) and a second through hole (415) are arranged on the lower sole (412) at intervals, working parts of a first anti-slip part (7) and a second anti-slip part (8) can respectively penetrate out of the first through hole (414) and the second through hole (415) and contact with the ground to realize contact anti-slip, the inner cavity (42) is provided with a plurality of guide columns (43) fixedly connected with the upper sole (41) and the lower sole (412), the guide columns (43) are sleeved with a structural plate (411) capable of moving up and down, and a plurality of springs (44) fixedly arranged on the structural plate (411) are fixedly connected with the upper sole (41) through lifting hooks (46);
the structural plate (411) comprises a first plate body (48) arranged on the outer side and a second plate body (49) arranged on the inner side, the second plate body (49) is embedded on the first plate body (48) and is arranged in a staggered mode, a first groove (413) formed in the first plate body (48) is matched with a second flange (63) on the round shaft (61) for use, and a second groove (416) formed in the second plate body (49) is matched with a first flange (62) on the round shaft (61) for use;
a connecting column (71) of the first anti-skid part (7) is fixedly connected with a structural plate (411), and an anti-skid body (72) is arranged on the lower side of the connecting column (71);
the second anti-skid part (8) comprises a sucker (81) made of elastic materials, the top of the sucker (81) is provided with an upright post (82), and the upright post (82) is fixedly connected to the structural plate (411);
the novel air-conditioning shoe is characterized in that the sucker (81) is of a hemispherical structure, a second air passage (83) is arranged in a stand column (82) arranged at the top of the hemispherical structure, a one-way valve (84) is arranged at the port position of the second air passage (83), the other end of the second air passage (83) is communicated with an air bag (9) through a hose (45), and the air bag (9) is arranged at the front end of the shoe upper (1) and corresponds to the position of toes.
2. Anti-slip shoe according to claim 1, characterized in that said anti-slip body (72) is of conical type.
3. Anti-slip shoe according to claim 1, characterized in that said anti-slip body (72) is of the triangular prism, cylindrical or toroidal type.
4. Anti-slip shoe according to claim 3, characterized in that the lower side of the triangular prism, cylinder or ring is provided with a plurality of uniformly arranged teeth (73).
5. Anti-slip shoe according to claim 1, characterized in that said first through hole (414) is circular or elliptical and said second through hole (415) is rectangular.
6. Anti-slip shoe according to claim 1, characterized in that the second flange (63) is arranged at 90 ° to the first flange (62).
7. Anti-slip shoe according to claim 1, characterized in that the hose (45) is arranged in a first air channel (47) in the upper sole (41).
8. Anti-slip shoe according to claim 1, characterized in that the bladder (9) is provided with a one-way valve for air intake.
CN201910092429.0A 2019-01-30 2019-01-30 Anti-skid shoes Expired - Fee Related CN109619753B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910092429.0A CN109619753B (en) 2019-01-30 2019-01-30 Anti-skid shoes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910092429.0A CN109619753B (en) 2019-01-30 2019-01-30 Anti-skid shoes

Publications (2)

Publication Number Publication Date
CN109619753A CN109619753A (en) 2019-04-16
CN109619753B true CN109619753B (en) 2021-03-19

Family

ID=66064266

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910092429.0A Expired - Fee Related CN109619753B (en) 2019-01-30 2019-01-30 Anti-skid shoes

Country Status (1)

Country Link
CN (1) CN109619753B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205512623U (en) * 2016-02-04 2016-08-31 泉州市范特西智能科技有限公司 Comfortable adjustable sports shoes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2790224Y (en) * 2005-04-07 2006-06-28 郭志波 Snowshoe anti skid device
CN201055028Y (en) * 2007-12-14 2008-05-07 蓝劲松 Suction disc bionic shoes
US20110047817A1 (en) * 2009-08-25 2011-03-03 Francello Gene A Sole construction for shoe having self-pumping extendable spikes
CN207506015U (en) * 2018-02-08 2018-06-19 金帝集团股份有限公司 A kind of shoes of antiskid function
CN208160161U (en) * 2018-05-11 2018-11-30 惠安事盛鞋业有限公司 A kind of children's shoes with antiskid function

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205512623U (en) * 2016-02-04 2016-08-31 泉州市范特西智能科技有限公司 Comfortable adjustable sports shoes

Also Published As

Publication number Publication date
CN109619753A (en) 2019-04-16

Similar Documents

Publication Publication Date Title
US4873774A (en) Shoe sole with retractable cleats
JP3096646U (en) Anti-slip structure for shoes
CN110897253A (en) A kind of intelligent anti-skid shoes, intelligent household elderly anti-skid shoes and anti-skid control method thereof
CN109619753B (en) Anti-skid shoes
CN113951597A (en) Efficient anti-slip sole and shoe
CN108260889A (en) A kind of on-slip shoes easy to use
CN212661219U (en) Improved anti-skid sole
CN211672664U (en) Antiskid shoe for indoor sports
CN212938303U (en) Anti-skid sole
CN114304802B (en) Snow antiskid shoe capable of preventing foreign matters from affecting balance
CN211510729U (en) Simple to operate's snow boots antiskid sole
CN111920139A (en) Man business leather shoes
CN222054737U (en) Anti-skid sole and anti-skid shoe using same
CN214759456U (en) Convenient abluent anti-skidding sandals
CN105876993A (en) Anti-slipping rain boots
CN2896947Y (en) Anti-skid shoe-cover
CN211379827U (en) Anti-skid slippers
CN207041040U (en) Anti-skidding and size adjustable shoe cover
CN208228479U (en) A kind of anti-skidding auxiliary device of sole and on-slip shoes
CN210130410U (en) Novel adsorb antiskid bathroom slippers
CN2619504Y (en) Anti-skid shoe-sole
CN215124851U (en) Anti-skid rain shoes
CN211794602U (en) Sports shoes with anti-skid pricks at soles
CN209732712U (en) Anti-skid ball shoes
CN219229179U (en) Sole with switchable anti-skid effect

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210319