Granted Patent
Utility
US 4,305,804 · App. 06/148,154
Plating barrel contact
Inventor:
Norman B. Tipton
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: May 7, 1980
Inventor
Norman B. Tipton
Assignee (at issue)
The Harshaw Chemical Company
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.