Granted Patent
Utility
US 5,264,671 · App. 07/886,191
Varistor inserter device for a high-voltage circuit-breaker
Inventors:
Van Doan Pham, Michel Perret, Joseph Martin
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: May 21, 1992
Inventors
Van Doan Pham
Michel Perret
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.