Granted Patent
Utility
US 4,458,132 · App. 06/205,221
Welding apparatus and control system therefor
Inventors:
Roger G. Reynolds, Thomas S. Holtaway
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Nov 10, 1980
Inventors
Roger G. Reynolds
Thomas S. Holtaway
Assignee (at issue)
Weldex, 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.