Granted Patent
Utility
US 6,609,572 · App. 10/060,343
Riser connector
Inventors:
Jan Andersen, Vidar Larsen
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Feb 1, 2002
Inventors
Jan Andersen
Vidar Larsen
Assignee (at issue)
Smedvig Offshore AS
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.