Granted Patent
Utility
US 5,899,639 · App. 09/023,452
Offshore structure for extreme water depth
Inventor:
John J. Simmons
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Feb 13, 1998
Inventor
John J. Simmons
Assignee (at issue)
McDermott International, Inc.
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.