Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 2, 2010
Patent Application Number
11976245
Date Filed
October 23, 2007
Patent Primary Examiner
Patent abstract
A gasket 7 used for a prefilled syringe 1 in which liquid 3 is filled, having a constriction 8 on its circumferential side face in contact with an inner surface of a syringe barrel 2 and having a bottom face 7c which is not in contact with the liquid 3 whose circumference is formed in a tapered shape.
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