Granted Patent
Utility
US 4,637,470 · App. 06/747,081
Subsea hydraulic coupling
Inventors:
Gary G. Weathers, Billy J. Rice
Patented Case
View Patent ↗
Granted: Jan 20, 1987
Filed: Jun 19, 1985
Inventors
Gary G. Weathers
Billy J. Rice
Assignee (at issue)
Hughes Tool Company LLC
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.