Granted Patent
Utility
US 4,932,482 · App. 07/380,426
Downhole motor with an enlarged connecting rod housing
Inventor:
Frank DeLucia
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Jul 17, 1989
Inventor
Frank DeLucia
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.