Granted Patent
Utility
US 4,425,965 · App. 06/386,035
Safety system for submersible pump
Inventors:
Russell Irving Bayh, III, William G. Boyle
Patented Case
View Patent ↗
Granted: Jan 17, 1984
Filed: Jun 7, 1982
Inventors
Russell Irving Bayh, III
William G. Boyle
Assignee (at issue)
Otis Engineering Corporation
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.