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
CA861296A
Inventor
W. Bowman Clement
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.)
Cities Service Athabasca Inc
Imperial Oil Ltd
Royalite Oil Co Ltd
Atlantic Richfield Co
Original Assignee
Cities Service Athabasca Inc
Imperial Oil Ltd
Royalite Oil Co Ltd
Atlantic Richfield Co
Publication date
Application grantedgrantedCritical
Publication of CA861296ApublicationCriticalpatent/CA861296A/en