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.)
William Bertram Porter and Ernest Carlton Hulisani Frederick
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
Filing date
Publication date
Application filed by BP PLCfiledCriticalBP PLC
Application grantedgrantedCritical
Publication of AU208146B2publicationCriticalpatent/AU208146B2/en
Publication of AU493054ApublicationCriticalpatent/AU493054A/en