Granted Patent
Utility
US 5,321,221 · App. 07/977,786
Self-disconnecting circuit-breaker for medium tension, and use thereof in a medium-tension station or bay
Inventor:
Paul Rozier
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Nov 17, 1992
Inventor
Paul Rozier
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.