Granted Patent
Utility
US 6,722,934 · App. 10/098,708
Marine jet drive with through-the-nozzle exhausting
Inventor:
Paul W. Roos
Patented Case
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Granted: Apr 20, 2004
Filed: Mar 15, 2002
Inventor
Paul W. Roos
Assignee (at issue)
America Hydro Jet Corporation
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.