Granted Patent
Utility
US 6,789,434 · App. 10/202,216
Fluid flowmeter having a hall effect sensor with an internal magnet
Inventor:
James W. Peterson
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Jul 24, 2002
Inventor
James W. Peterson
Assignee (at issue)
Dwyer Instruments, LLC
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.