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
CA812496A
Inventor
B. Brooks Warren
T. Dean James
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.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil Corp
Publication date
Application grantedgrantedCritical
Publication of CA812496ApublicationCriticalpatent/CA812496A/en