Granted Patent
Utility
US 4,878,348 · App. 07/250,198
Turbine governor valve monitor
Inventor:
Daniel E. Fridsma
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Sep 28, 1988
Inventor
Daniel E. Fridsma
Assignee (at issue)
Westinghouse Electric Company 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.