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.)
Deutsche Gold & Silber-Scheideanstalt Vorm Roessler
Evonik Operations GmbH
Original Assignee
Deutsche Gold & Silber-Scheideanstalt Vorm Roessler
Degussa GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deutsche Gold & Silber-Scheideanstalt Vorm Roessler, Degussa GmbHfiledCriticalDeutsche Gold & Silber-Scheideanstalt Vorm Roessler
Application grantedgrantedCritical
Publication of FR584154ApublicationCriticalpatent/FR584154A/en