Granted Patent
Utility
US 6,622,893 · App. 10/095,456
Valve gasket for a metering valve
Inventors:
Patrice Leone, Sandrine Barranco, Patrick Di Giovanni
Patented Case
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Granted: Sep 23, 2003
Filed: Mar 13, 2002
Inventors
Patrice Leone
Sandrine Barranco
Patrick Di Giovanni
Assignee (at issue)
VALOIS 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.