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
CA900744A
Inventor
V. Maul Robert
L. Swalley Everett
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 Oil Co
Original Assignee
Cities Service Oil Co
Publication date
Application grantedgrantedCritical
Publication of CA900744ApublicationCriticalpatent/CA900744A/en