Granted Patent
Utility
US 4,245,185 · App. 06/023,368
Solid state circuit breaker with three phase capability
Inventors:
James T. Mitchell, William W. Billings
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Mar 23, 1979
Inventors
James T. Mitchell
William W. Billings
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.