Granted Patent
Utility
US 5,697,732 · App. 08/578,637
System for offshore production of hydrocarbons
Inventor:
Martin Sigmundstad
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: May 3, 1996
Inventor
Martin Sigmundstad
Assignee (at issue)
Den Norske Stats Oljeselskap A.S.
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.