Granted Patent
Utility
US 5,823,131 · App. 08/970,949
Method and apparatus for disconnecting and retrieving multiple risers attached to a floating vessel
Inventors:
L. Terry Boatman, Ron L. Kelm, Brent A. Salyer, Jerry L. McCollum, Charles O. Etheridge
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Nov 14, 1997
Inventors
L. Terry Boatman
Ron L. Kelm
Brent A. Salyer
Jerry L. McCollum
Charles O. Etheridge
Assignee (at issue)
FMC 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.