Granted Patent
Utility
US 4,361,283 · App. 06/186,979
Plural component spray gun convertible from air atomizing to airless
Inventors:
Robert D. Hetherington, David W. O'Reilly
Patented Case
View Patent ↗
Granted: Nov 30, 1982
Filed: Sep 15, 1980
Inventors
Robert D. Hetherington
David W. O'Reilly
Assignee (at issue)
Binks Manufacturing 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.