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.)
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 Corp North America Inc
Original Assignee
BP Corp North America Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/926,010external-prioritypatent/US5071974A/en
Application filed by BP Corp North America IncfiledCriticalBP Corp North America Inc
Publication of AU8059787ApublicationCriticalpatent/AU8059787A/en
Application grantedgrantedCritical
Publication of AU602540B2publicationCriticalpatent/AU602540B2/en
Publication of AU602540CpublicationCriticalpatent/AU602540C/en