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
CA836585A
Inventor
Muller-Calgan Helmut
Schulte Karl
Koppe Volker
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 CA836585ApublicationCriticalpatent/CA836585A/en