Granted Patent
Utility
US 4,430,111 · App. 06/402,672
Method and apparatus to remove sharply bent, tempered glass sheets from a cooling station
Inventors:
George R. Claassen, John J. Ewing
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Jul 28, 1982
Inventors
George R. Claassen
John J. Ewing
Assignee (at issue)
PPG Industries, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.