Granted Patent
Utility
US 5,455,401 · App. 08/321,707
Plasma torch electrode
Inventor:
Debbie A. Dumais
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Oct 12, 1994
Inventor
Debbie A. Dumais
Assignee (at issue)
AEROJET-GENERAL 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.