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
CA910221A
Inventor
J. Racine William
D. Alpert Edward
James H. Caldwell, Jr.
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.)
Atlantic Richfield Co
Original Assignee
Atlantic Richfield Co
Publication date
Application grantedgrantedCritical
Publication of CA910221ApublicationCriticalpatent/CA910221A/en