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
CA836582A
Inventor
Guye-Vuilleme Jean-Frederic
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 CA836582ApublicationCriticalpatent/CA836582A/en