Granted Patent
Utility
US 5,654,512 · App. 08/488,842
Flexible membrane variable orifice fluid flow meter
Inventors:
Sean O. Harnett, Ronald E. Chasteen, Gregory Dean Troutman
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Jun 9, 1995
Inventors
Sean O. Harnett
Ronald E. Chasteen
Gregory Dean Troutman
Assignee (at issue)
Pacer Industries, 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.