Granted Patent
Utility
US 4,300,597 · App. 06/039,855
Dust cover assembly for quick disconnect coupling
Inventor:
Duane M. Delay, Sr.
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: May 17, 1979
Inventor
Duane M. Delay, Sr.
Assignee (at issue)
Gould Inc.
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.