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
CA847955A
Inventor
R. Biland Hans
Duennenberger Max
Luethi Christian
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.)
BASF Schweiz AG
Original Assignee
Ciba AG
Publication date
Application grantedgrantedCritical
Publication of CA847955ApublicationCriticalpatent/CA847955A/en