Granted Patent
Utility
US 4,345,592 · App. 06/185,894
Pressure demand regulator with automatic shut-off
Inventors:
Eugene Giorgini, John L. Sullivan
Patented Case
View Patent ↗
Granted: Aug 24, 1982
Filed: Sep 10, 1980
Inventors
Eugene Giorgini
John L. Sullivan
Assignee (at issue)
ATO BV
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.