Granted Patent
Utility
US 4,547,654 · App. 06/573,171
Method and apparatus for arc welding
Inventor:
Israel Stol
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Jan 23, 1984
Inventor
Israel Stol
Assignee (at issue)
Westinghouse Electric Company LLC
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.