Granted Patent
Utility
US 5,451,739 · App. 08/293,685
Electrode for plasma arc torch having channels to extend service life
Inventors:
Valerian Nemchinsky, Rue Allen Lynch
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Aug 19, 1994
Inventors
Valerian Nemchinsky
Rue Allen Lynch
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.