Granted Patent
Utility
US 4,347,539 · App. 06/270,176
Electrical equipment protective apparatus with energy balancing among parallel varistors
Inventors:
Charles A. Peterson, Robert T. Innis
Patented Case
View Patent ↗
Granted: Aug 31, 1982
Filed: Jun 3, 1981
Inventors
Charles A. Peterson
Robert T. Innis
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.