Granted Patent
Utility
US 4,513,944 · App. 06/632,321
Valve with latching means
Inventor:
James Adams
Patented Case
View Patent ↗
Granted: Apr 30, 1985
Filed: Jul 19, 1984
Inventor
James Adams
Assignee (at issue)
Otis Engineering Corporation
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.