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
CA807170A
Inventor
Unger Richard
Enenkel Hans-Joachim
Schorscher Ernst
Sommer Siegmund
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.)
Merck KGaA
Original Assignee
E Merck AG
Publication date
Application grantedgrantedCritical
Publication of CA807170ApublicationCriticalpatent/CA807170A/en