Granted Patent
Utility
US 4,859,076 · App. 07/196,706
Differential temperature sensors
Inventor:
Michael Twerdochlib
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: May 20, 1988
Inventor
Michael Twerdochlib
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.