Stretch blow-molded stackable tumbler
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United States of America Patent
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N/A
Issued Date -
Nov 16, 2006
app pub date -
Jul 6, 2006
filing date -
Aug 9, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The inventive drinking vessels are prepared by stretch blow-molding a preform and exhibit increased Rigidity as well as elevated, preferably relatively uniform crystallinity. A preferred method of making blow-molded stackable drinking vessels includes expanding a preform both axially and radially to make an intermediate article with a neck, a transition portion and a tumbler portion. The transition portion and neck are severed from the tumbler which is then fortified around its upper aperture which is larger than its base.
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