Granted Patent
Utility
US 4,402,773 · App. 05/958,314
Remote automatic make-up stab-in sealing system
Inventor:
Charles D. Morrill
Patented Case
View Patent ↗
Granted: Sep 6, 1983
Filed: Nov 6, 1978
Inventor
Charles D. Morrill
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.