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.)
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.)
Evonik Operations GmbH
Vereinigte Aluminium Werke AG
Original Assignee
TH Goldschmidt AG
Vereinigte Aluminium Werke AG
Publication date
Application grantedgrantedCritical
Publication of CA354854ApublicationCriticalpatent/CA354854A/en