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
CA159,939A
Inventor
Stanley I. Hayes (Jr.)
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.)
USM Corp
Original Assignee
USM Corp
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 USM CorpfiledCriticalUSM Corp
Priority to CA159,939ApriorityCriticalpatent/CA973672A/en
Application grantedgrantedCritical
Publication of CA973672ApublicationCriticalpatent/CA973672A/en