Granted Patent
Utility
US 5,127,269 · App. 07/517,827
Optical pressure transducer
Inventor:
Christopher P. Grudzien, Jr.
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: May 2, 1990
Inventor
Christopher P. Grudzien, Jr.
Assignee (at issue)
Dynisco, 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.