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.)
SECRETARY OF STATE OF CANADA
CHEMICAL DEVELOPMENTS OF CANADA Ltd
IG Farbenindustrie AG
GAF Chemicals Corp
Original Assignee
SECRETARY OF STATE OF CANADA
CHEMICAL DEVELOPMENTS OF CANADA Ltd
IG Farbenindustrie AG
General Aniline and Film Corp
Publication date
Application grantedgrantedCritical
Publication of CA464019ApublicationCriticalpatent/CA464019A/en