Granted Patent
Utility
US 4,662,663 · App. 06/649,124
Tubular member for underwater connection having volume
Inventor:
Thomas R. Schmitz
Patented Case
View Patent ↗
Granted: May 5, 1987
Filed: Sep 10, 1984
Inventor
Thomas R. Schmitz
Assignee (at issue)
Cameron Iron Works, 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.