Granted Patent
Utility
US 5,290,995 · App. 07/811,837
Plasma arc cutting system having fluid metering and power control systems
Inventors:
Philip K. Higgins, Peter Budai, Wayne Stanley Severance, Jr.
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Dec 20, 1991
Inventors
Philip K. Higgins
Peter Budai
Wayne Stanley Severance, Jr.
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.