Granted Patent
Utility
US 5,276,285 · App. 07/883,364
High rupture capacity circuit-breaker
Inventors:
Van Doan Pham, Robert Jeanjean, Joseph Martin, Robert Isbister
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: May 15, 1992
Inventors
Van Doan Pham
Robert Jeanjean
Joseph Martin
Robert Isbister
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.