Granted Patent
Utility
US 5,483,039 · App. 08/381,601
Cyclically controlled welding purge chamber
Inventor:
Robert L. Gallagher
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Jan 19, 1995
Inventor
Robert L. Gallagher
Assignee (at issue)
LOCKHEED MARTIN 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.