Granted Patent
Utility
US 4,433,685 · App. 06/410,489
Pressure demand regulator with automatic shut-off
Inventors:
Eugene Giorgini, John L. Sullivan
Patented Case
View Patent ↗
Granted: Feb 28, 1984
Filed: Aug 23, 1982
Inventors
Eugene Giorgini
John L. Sullivan
Assignee (at issue)
Figgie Inernational 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.