Granted Patent
Utility
US 6,273,117 · App. 09/350,955
Pressure regulator
Inventor:
Charles J. McPhee
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Jul 9, 1999
Inventor
Charles J. McPhee
Assignee (at issue)
I-Flow 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.