Granted Patent
Utility
US 4,445,807 · App. 06/328,791
Diverless subsea template levelling system and method
Inventor:
William S. Cowan
Patented Case
View Patent ↗
Granted: May 1, 1984
Filed: Dec 8, 1981
Inventor
William S. Cowan
Assignee (at issue)
Armco 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.