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
CA657913A
Inventor
E. A. Aspegren Olof
J. Eklund Andres
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.)
Oil Shale Corp
Original Assignee
Oil Shale Corp
Publication date
Application grantedgrantedCritical
Publication of CA657913ApublicationCriticalpatent/CA657913A/en