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
CA756608A
Inventor
Buchel Karl-Heinz
W. A. G. K. Korte Friedrich
Rochling Hans
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.)
Shell USA Inc
Original Assignee
Shell Oil Co
Publication date
Application grantedgrantedCritical
Publication of CA756608ApublicationCriticalpatent/CA756608A/en