Granted Patent
Utility
US 5,831,174 · App. 08/788,375
Pump station flowmeter
Inventor:
Benoit Beaudoin
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Jan 27, 1997
Inventor
Benoit Beaudoin
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.