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
CA658630A
Inventor
Engel Frederico
Schafer Johannes
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.)
Huels AG
Original Assignee
Frederico Engel
Chemische Werke Huels AG
Publication date
Application grantedgrantedCritical
Publication of CA658630ApublicationCriticalpatent/CA658630A/en