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
CA743958A
Inventor
Kawasaki Chikataro
Utsumi Isamu
Fujita Tadashi
Kobayashi Hiroshi
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.)
Tanabe Seiyaku Co Ltd
Original Assignee
Tanabe Seiyaku Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA743958ApublicationCriticalpatent/CA743958A/en