Granted Patent
Utility
US 6,362,450 · App. 09/772,652
Gas flow for plasma arc torch
Inventor:
Wayne Stanley Severance, Jr.
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: Jan 30, 2001
Inventor
Wayne Stanley Severance, Jr.
Assignee (at issue)
THE ESAB GROUP 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.