Granted Patent
Utility
US 4,884,752 · App. 07/283,871
Electrostatic paint spray system with dual voltage isolating paint reservoirs
Inventor:
Raymond G. Plummer
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Dec 13, 1988
Inventor
Raymond G. Plummer
Assignee (at issue)
The Deilbiss 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.