Granted Patent
Utility
US 4,911,020 · App. 07/116,257
Coriolis-type mass flowmeter circuitry
Inventor:
Duane T. Thompson
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Oct 29, 1987
Inventor
Duane T. Thompson
Assignee (at issue)
Fox Boro Company
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.