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
CA700923A
Inventor
Demeester Jacques
Maillart Jean-Bernard
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.)
BP PLC
Original Assignee
BP PLC
Publication date
Application grantedgrantedCritical
Publication of CA700923ApublicationCriticalpatent/CA700923A/en