Granted Patent
Utility
US 4,032,742 · App. 05/616,187
Stud welding gun and method of operation
Inventors:
Gary R. Kendrick, Robert A. Sauder
Patented Case
View Patent ↗
Granted: Jun 28, 1977
Filed: Sep 24, 1975
Inventors
Gary R. Kendrick
Robert A. Sauder
Assignee (at issue)
Sauder Industries, 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.