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
CA759513A
Inventor
L. Miller Elmer
W. Walsh John
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.)
Union Oil Company of California
Original Assignee
Union Oil Company of California
Publication date
Application grantedgrantedCritical
Publication of CA759513ApublicationCriticalpatent/CA759513A/en