Manufacture of plastic containers having internal identifying indicia molded on a container wall
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United States of America Patent
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Nov 25, 2008
Grant Date -
Nov 16, 2006
app pub date -
May 13, 2005
filing date -
May 13, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A method of making a container preform includes providing a mold core having at least one surface recess in the form of negative-mold indicia, and molding a preform around the core such that the preform has internal raised indicia formed by the at least one recess in the core. The preform preferably subsequently is blow-molded to form a container having the raised indicia on an inside surface of the container. This raised indicia on the inside surface of the container may be viewed from outside of the container to confirm that the container is genuine. In accordance with various embodiments of the disclosure, the raised internal indicia may be on the bottom wall, sidewall, shoulder and/or neck of the container.
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