Granted Patent
Utility
US 4,476,897 · App. 06/399,008
Flowline connector seal
Inventor:
Charles D. Morrill
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Jul 16, 1982
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.