Granted Patent
Utility
US 4,453,099 · App. 06/341,959
Submersible motor bearing with extended sleeve
Inventor:
Bill D. Flat
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Jan 22, 1982
Inventor
Bill D. Flat
Assignee (at issue)
Hughes Tool 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.