Granted Patent
Utility
US 4,337,135 · App. 06/164,582
Barrel plating apparatus
Inventors:
Carrol D. Quinton, Raphael Guio
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Jun 30, 1980
Inventors
Carrol D. Quinton
Raphael Guio
Assignee (at issue)
Bunker Ramo Corporation
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.