Granted Patent
Utility
US 5,252,802 · App. 08/009,864
Apparatus for welding a stud to a workpiece
Inventor:
Robert J. Raycher
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: Jan 27, 1993
Inventor
Robert J. Raycher
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.