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
CA843952A
Inventor
Thesing Jan
Seitz Georg
Pohlke Rolf
Sommer Siegmund
Muller-Calgan Helmut
Gotz Manfred
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 CA843952ApublicationCriticalpatent/CA843952A/en