Granted Patent
Utility
US 4,750,707 · App. 07/098,019
Angle valve
Inventors:
Ronald L. Johncox, R. Dale Moretz, Richard Melville France, David P. Passerell
Patented Case
View Patent ↗
Granted: Jun 14, 1988
Filed: Sep 17, 1987
Inventors
Ronald L. Johncox
R. Dale Moretz
Richard Melville France
David P. Passerell
Assignee (at issue)
Perfection Holdings LLC
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.