Granted Patent
Utility
US 4,738,705 · App. 07/042,590
Gas burner forced convection heating of glass sheets
Inventor:
Harold A. McMaster
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Apr 15, 1987
Inventor
Harold A. McMaster
Assignee (at issue)
Glasstech, 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.