Granted Patent
Utility
US 4,385,636 · App. 06/231,707
Telemetric differential pressure sensor with the improvement of a conductive shorted loop tuning element and a resonant circuit
Inventor:
Eric R. Cosman
Patented Case
View Patent ↗
Granted: May 31, 1983
Filed: Feb 5, 1981
Inventor
Eric R. Cosman
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.