Granted Patent
Utility
US 4,301,490 · App. 06/055,864
Electronic overload protection circuit
Inventors:
Harry C. Nagel, John J. Kuhn
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jul 9, 1979
Inventors
Harry C. Nagel
John J. Kuhn
Assignee (at issue)
American Standard Inc.
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.