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
CA786143A
Inventor
P. Ahearn George
W. Gale Walter
Original Assignee
Esso Production Research Co
Publication date
Application grantedgrantedCritical
Publication of CA786143ApublicationCriticalpatent/CA786143A/en