Granted Patent
Utility
US 4,368,575 · App. 06/168,095
Pressure transducer--method of making same
Inventors:
Herman W. Erichsen, Michael A. Amoroso, Jr.
Patented Case
View Patent ↗
Granted: Jan 18, 1983
Filed: Jul 14, 1980
Inventors
Herman W. Erichsen
Michael A. Amoroso, Jr.
Assignee (at issue)
DATAQ Instruments, 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.