Granted Patent
Utility
US 4,986,471 · App. 07/375,422
Remote indicator light and safety shield for electrostatic spray gun
Inventor:
Gary L. Hethcoat
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: Jul 3, 1989
Inventor
Gary L. Hethcoat
Assignee (at issue)
General Dynamics Corporation Air Defense Systems Div.
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.