Granted Patent
Utility
US 4,913,239 · App. 07/357,188
Submersible well pump and well completion system
Inventor:
Russell Irving Bayh, III
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: May 26, 1989
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.