Granted Patent
Utility
US 4,901,045 · App. 07/325,760
Secondary circuit breaker for distribution transformers
Inventor:
E. R. Eley
Patented Case
View Patent ↗
Granted: Feb 13, 1990
Filed: Mar 20, 1989
Inventor
E. R. Eley
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.