Granted Patent
Utility
US 4,358,648 · App. 06/171,931
Power circuit breaker with opening and closing mechanisms
Inventors:
Ronald W. Crookston, Hayes O. Dakin, Jr.
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Jul 18, 1980
Inventors
Ronald W. Crookston
Hayes O. Dakin, Jr.
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.