Granted Patent
Utility
US 4,730,677 · App. 06/944,874
Method and system for maintenance and servicing of subsea wells
Inventors:
Joseph L. Pearce, Phillip S. Sizer, John C. Gano, John H. Yonker, Robert L. Thurman, James O'Sullivan, Dayton M. Simpson, Richard A. Roberts, Anthony J. Healey, Urie G. Nooteboom
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Dec 22, 1986
Inventors
Joseph L. Pearce
Phillip S. Sizer
John C. Gano
John H. Yonker
Robert L. Thurman
James O'Sullivan
Dayton M. Simpson
Richard A. Roberts
Anthony J. Healey
Urie G. Nooteboom
Assignee (at issue)
Otis Engineering Corporation
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.