Granted Patent
Utility
US 4,562,328 · App. 06/648,684
Stud welding tool
Inventor:
Thomas Shoup
Patented Case
View Patent ↗
Granted: Dec 31, 1985
Filed: Sep 10, 1984
Inventor
Thomas Shoup
Assignee (at issue)
TRW Limited
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.