Granted Patent
Utility
US 5,452,855 · App. 07/432,279
High volume/low pressure spray gun
Inventor:
Edward E. Keller
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Nov 6, 1989
Inventor
Edward E. Keller
Assignee (at issue)
Hughes Aircraft 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.