Granted Patent
Utility
US 4,486,635 · App. 06/510,492
High-voltage circuit breaker with improved puffer means
Inventor:
B. J. de Calvino y Teijeiro
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Jul 5, 1983
Inventor
B. J. de Calvino y Teijeiro
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.