Granted Patent
Utility
US 4,440,021 · App. 06/173,282
Mass flow meter with reduced attitude sensitivity
Inventors:
John W. Abouchar, Michael Doyle
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Jul 29, 1980
Inventors
John W. Abouchar
Michael Doyle
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.