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
CA686287A
Inventor
Van Schooten Jan
G. G. Werner Ernest
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
Ernest G G Werner
Jan Van Schooten
Shell Oil Co
Publication date
Application grantedgrantedCritical
Publication of CA686287ApublicationCriticalpatent/CA686287A/en