Granted Patent
Utility
US 4,844,342 · App. 07/101,913
Spray gun control circuit
Inventor:
Raymond J. Foley
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Sep 28, 1987
Inventor
Raymond J. Foley
Assignee (at issue)
The DeVilbiss 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.