Granted Patent
Utility
US 4,356,443 · App. 06/181,513
Detection of arcing faults in polyphase electric machines
Inventor:
Franklin T. Emery
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Aug 26, 1980
Inventor
Franklin T. Emery
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.