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
CA671842A
Inventor
Koch Heinrich
Pfeiffer Erich
Prakash Ravendra
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.)
Hoechst AG
Original Assignee
Farbwerke Hoechst AG
Publication date
Application grantedgrantedCritical
Publication of CA671842ApublicationCriticalpatent/CA671842A/en