IP Library Granted Patent US 5,331,968
Granted Patent Utility
US 5,331,968 · App. 08/032,835

Inductive plethysmographic transducers and electronic circuitry therefor

Inventors: Gerald J. Williams, Herman L. Watson, Marvin A. Sackner, Chu Pak, James Wei Weng Chong
Patented Case View Patent ↗
Granted: Jul 26, 1994 Filed: Mar 10, 1993
Inventors
Gerald J. Williams
Herman L. Watson
Marvin A. Sackner
Chu Pak
James Wei Weng Chong

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.

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Quick Facts
Patent No.
US 5,331,968
App. No.
08/032,835
Filed
1993-03-10
Granted
1994-07-26
Kind
A