Granted Patent
Utility
US 5,164,559 · App. 07/692,421
Circuit breaker with an incorporated varistor
Inventors:
Van Doan Pham, Edmond Thuries, Joseph Martin
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Apr 29, 1991
Inventors
Van Doan Pham
Edmond Thuries
Joseph Martin
Assignee (at issue)
GEC Alsthom T&D SA
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.