Granted Patent
Utility
US 5,665,256 · App. 08/574,973
Cutting or welding system having phase loss detector and method of detecting phase loss for same
Inventor:
Tibor Toth
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: Dec 19, 1995
Inventor
Tibor Toth
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.