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
CA684564A
Inventor
C. Tesoro Giuliana
I. Valko Emery
Freiman Aaron
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.)
Onyx Oil and Chemical Co
Original Assignee
Onyx Oil and Chemical Co
Publication date
Application grantedgrantedCritical
Publication of CA684564ApublicationCriticalpatent/CA684564A/en