Granted Patent
Utility
US 6,476,339 · App. 09/740,137
Stud welding gun
Inventor:
William C. Easterday
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Dec 18, 2000
Inventor
William C. Easterday
Assignee (at issue)
NELSON STUD WELDING, 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.