Granted Patent
Utility
US 6,378,450 · App. 09/496,978
Dynamically positioned semi-submersible drilling vessel with slender horizontal braces
Inventors:
Eugene Begnaud, Calvin Vinal Norton, Bruce Malcolm
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Feb 2, 2000
Inventors
Eugene Begnaud
Calvin Vinal Norton
Bruce Malcolm
Assignee (at issue)
Friede & Goldman, Ltd.
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.