Granted Patent
Utility
US 5,194,715 · App. 07/799,369
Plasma arc torch used in underwater cutting
Inventors:
Wayne Stanley Severance, Jr., David Greg Anderson
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Nov 27, 1991
Inventors
Wayne Stanley Severance, Jr.
David Greg Anderson
Assignee (at issue)
ESAB Welding Products, 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.