Granted Patent
Utility
US 4,513,193 · App. 06/447,269
Automatic stud welding equipment with fluid and stud feeding
Inventor:
Donald H. Ettinger
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Dec 10, 1982
Inventor
Donald H. Ettinger
Assignee (at issue)
USM Holding AG
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.