Granted Patent
Utility
US 6,654,437 · App. 10/094,630
Method of repairing a labyrinth seal of a diffuser in a primary pump of a nuclear power station
Inventor:
Louis Mazuy
Patented Case
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Granted: Nov 25, 2003
Filed: Mar 12, 2002
Inventor
Louis Mazuy
Assignee (at issue)
Jeumont S.A.
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.