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
CA874960A
Inventor
B. Lavigne Joe
F. Hughes Mack
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.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology Co
Publication date
Application grantedgrantedCritical
Publication of CA874960ApublicationCriticalpatent/CA874960A/en