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.)
Whiting Corp
Original Assignee
Whiting Corp
Filing date
Publication date
Priority claimed from US496259Aexternal-prioritypatent/US3892187A/en
Application filed by Whiting CorpfiledCriticalWhiting Corp
Application grantedgrantedCritical
Publication of AU8098075ApublicationCriticalpatent/AU8098075A/en
Publication of AU482086B2publicationCriticalpatent/AU482086B2/en