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.)
DUPLATE CANADA Ltd
PPG Industries Inc
Original Assignee
DUPLATE CANADA Ltd
Pittsburgh Plate Glass Co
Publication date
Application grantedgrantedCritical
Publication of CA456362ApublicationCriticalpatent/CA456362A/fr