Granted Patent
Utility
US 4,625,798 · App. 06/697,051
Submersible pump installation, methods and safety system
Inventor:
Russell Irving Bayh, III
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Jan 31, 1985
Inventor
Russell Irving Bayh, III
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.