Granted Patent
Utility
US 6,794,608 · App. 09/984,559
Welding current control system and method
Inventors:
Dale A. Flood, Ronald R. Rothermel
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Oct 30, 2001
Inventors
Dale A. Flood
Ronald R. Rothermel
Assignee (at issue)
TRI TOOL 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.