Granted Patent
Utility
US 4,314,836 · App. 06/174,961
Glass sheet tempering apparatus with nozzle arrangement providing fluid escape paths and method of tempering glass sheets
Inventor:
Samuel L. Seymour
Patented Case
View Patent ↗
Granted: Feb 9, 1982
Filed: Aug 4, 1980
Inventor
Samuel L. Seymour
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.