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
CA616756A
Inventor
L. Stroup Earl
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.)
Overhead Door Corp
Original Assignee
Overhead Door Corp
Publication date
Application grantedgrantedCritical
Publication of CA616756ApublicationCriticalpatent/CA616756A/en