Granted Patent
Utility
US 6,131,411 · App. 09/217,500
Method and furnace for heating glass sheets
Inventor:
James P. Schnabel, Jr.
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Dec 21, 1998
Inventor
James P. Schnabel, Jr.
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.