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
CA226,737A
Inventor
Augustus W. Griswold
Boris W. Haritonoff
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.)
Arcata Microfilm Corp
Original Assignee
Arcata Microfilm 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
Priority claimed from US00268792Aexternal-prioritypatent/US3802979A/en
Application filed by Arcata Microfilm CorpfiledCriticalArcata Microfilm Corp
Priority to CA226,737ApriorityCriticalpatent/CA1000084A/en
Priority to CA245,622Aprioritypatent/CA1012805A/en
Application grantedgrantedCritical
Publication of CA1000084ApublicationCriticalpatent/CA1000084A/en