Granted Patent
Utility
US 4,694,374 · App. 06/727,697
Programmed overexcitation protective relay and method of operating the same
Inventor:
William R. Verbanets
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Apr 26, 1985
Inventor
William R. Verbanets
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.