Granted Patent
Utility
US 4,372,173 · App. 06/198,705
Resonator force transducer
Inventors:
Errol P. EerNisse, Jerome M. Paros
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Oct 20, 1980
Inventors
Errol P. EerNisse
Jerome M. Paros
Assignee (at issue)
Quartex, Inc.
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.