Granted Patent
Utility
US 4,497,369 · App. 06/319,179
Hydraulic control of subsea well equipment
Inventors:
Gary L. Hurta, Lionel J. Milberger, Alford M. Williams
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Aug 13, 1981
Inventors
Gary L. Hurta
Lionel J. Milberger
Alford M. Williams
Assignee (at issue)
Combustion Engineering, 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.