FR668407A - Perfectionnements aux antennes - Google Patents

Perfectionnements aux antennes

Info

Publication number: FR668407A
Authority: FR; France
Prior art keywords: antennas; antennas improvements
Prior art date: 1928-09-07
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

Application number

Other languages

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.)

RCA Corp

Original Assignee

RCA Corp

Radio Corporation of America

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.)

1928-09-07

Filing date

1929-01-23

Publication date

1929-10-31

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23176540&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR668407(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1929-01-23 Application filed by RCA Corp, Radio Corporation of America filed Critical RCA Corp

1929-10-31 Application granted granted Critical

1929-10-31 Publication of FR668407A publication Critical patent/FR668407A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands

FR668407D 1928-09-07 1929-01-23 Perfectionnements aux antennes Expired FR668407A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US304445A US1884006A (en)	1928-09-07	1928-09-07	Antenna

Publications (1)

Publication Number	Publication Date
FR668407A true FR668407A (fr)	1929-10-31

Family

ID=23176540

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR668407D Expired FR668407A (fr)	1928-09-07	1929-01-23	Perfectionnements aux antennes

Country Status (4)

Country	Link
US (1)	US1884006A (fr)
FR (1)	FR668407A (fr)
GB (1)	GB318619A (fr)
NL (1)	NL28726C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2524993A (en) *	1945-09-14	1950-10-10	Victor H Rumsey	Antenna

0
- NL NL28726D patent/NL28726C/xx active
1928
- 1928-09-07 US US304445A patent/US1884006A/en not_active Expired - Lifetime
1929
- 1929-01-23 FR FR668407D patent/FR668407A/fr not_active Expired
- 1929-08-16 GB GB25121/29A patent/GB318619A/en not_active Expired

Also Published As

Publication number	Publication date
GB318619A (en)	1930-10-09
US1884006A (en)	1932-10-25
NL28726C (fr)

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