Granted Patent
Utility
US 4,471,803 · App. 06/355,532
Flow limit shutoff valve
Inventor:
Louis A. Ollivier
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Mar 8, 1982
Inventor
Louis A. Ollivier
Assignee (at issue)
Veriflo 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.