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
CA882741A
Inventor
Hara Hajime
Imai Nobuo
Otsuki Yutaka
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.)
Eneos Corp
Original Assignee
Hajime Hara
Nobuo Imai
Yutaka Otsuki
Nippon Oil Corp
Publication date
Application grantedgrantedCritical
Publication of CA882741ApublicationCriticalpatent/CA882741A/en