Granted Patent
Utility
US 4,891,991 · App. 06/923,847
Coriolis-type mass flowmeter
Inventors:
Wade M. Mattar, Duane T. Thompson, Joseph P. DeCarlo, Yousif Hussain, Gordon W. Chitty
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Oct 28, 1986
Inventors
Wade M. Mattar
Duane T. Thompson
Joseph P. DeCarlo
Yousif Hussain
Gordon W. Chitty
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.