Granted Patent
Utility
US 4,371,005 · App. 06/098,965
Protective cover for underwater flow line hub
Inventors:
Charles D. Morrill, Michael Best
Patented Case
View Patent ↗
Granted: Feb 1, 1983
Filed: Nov 30, 1979
Inventors
Charles D. Morrill
Michael Best
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.