Granted Patent
Utility
US 5,376,329 · App. 07/976,734
Method of making composite orifice for melting furnace
Inventors:
Ricky D. Morgan, James A. Giffen, Jr.
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Nov 16, 1992
Inventors
Ricky D. Morgan
James A. Giffen, Jr.
Assignee (at issue)
GTE Products Corporation
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.