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.)
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.)
MATTHEWS DONNELL R (JR)
Original Assignee
MATTHEWS DONNELL R (JR)
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 US00281465Aexternal-prioritypatent/US3813877A/en
Application filed by MATTHEWS DONNELL R (JR)filedCriticalMATTHEWS DONNELL R (JR)
Priority to CA214,683ApriorityCriticalpatent/CA975970A/en
Application grantedgrantedCritical
Publication of CA975970ApublicationCriticalpatent/CA975970A/en