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
CA856237A
Inventor
Siang Chao Tai
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.)
Sinclair Oil Corp
Original Assignee
Sinclair Oil Corp
Publication date
Application grantedgrantedCritical
Publication of CA856237ApublicationCriticalpatent/CA856237A/en