Granted Patent
Utility
US 4,663,589 · App. 06/821,982
Displacement sensor having multiplexed dual tank circuits
Inventor:
David Fiori, Jr.
Patented Case
View Patent ↗
Granted: May 5, 1987
Filed: Jan 29, 1986
Inventor
David Fiori, Jr.
Assignee (at issue)
Sensor Technologies, LLC
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.