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
CA612760A
Inventor
E. Rumscheidt Gottfried
Wouter Van Raamsdonk Gerrit
Bruin Pieter
Ruinard Cornelis
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
Cornelis Ruinard
Gerrit Wouter Van Raamsdonk
Gottfried E Rumscheidt
Pieter Bruin
Shell Oil Co
Publication date
Application grantedgrantedCritical
Publication of CA612760ApublicationCriticalpatent/CA612760A/en