Granted Patent
Utility
US 4,401,398 · App. 06/266,967
Support structure for mudline suspension wellhead
Inventor:
Donald R. Remson
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: May 26, 1981
Inventor
Donald R. Remson
Assignee (at issue)
Western Services 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.