Granted Patent
Utility
US 4,560,014 · App. 06/365,614
Thrust bearing assembly for a downhole drill motor
Inventor:
Bela Geczy
Patented Case
View Patent ↗
Granted: Dec 24, 1985
Filed: Apr 5, 1982
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.