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
CA879819A
Inventor
George F. Ritter, Jr.
J. Carson Frank
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.)
Pilkington North America Inc
Original Assignee
Frank J Carson
Libbey Owens Ford Co
Publication date
Application grantedgrantedCritical
Publication of CA879819ApublicationCriticalpatent/CA879819A/en