Granted Patent
Utility
US 4,732,491 · App. 06/900,677
Downhole motor bearing assembly
Inventor:
Bela Geczy
Patented Case
View Patent ↗
Granted: Mar 22, 1988
Filed: Aug 27, 1986
Inventor
Bela Geczy
Assignee (at issue)
SMITH INTERNATIONAL, INC.
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.