Granted Patent
Utility
US 4,495,400 · App. 06/371,737
Method and apparatus for positioning a welding torch in automatic electric welding
Inventor:
Floyd M. Thompson
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Apr 26, 1982
Inventor
Floyd M. Thompson
Assignee (at issue)
Crutcher Resources Corporation
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.