Granted Patent
Utility
US 4,599,100 · App. 06/718,622
Melting glass with port and melter burners for NO.sub.x control
Inventor:
Henry M. Demarest, Jr.
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Apr 1, 1985
Inventor
Henry M. Demarest, Jr.
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.