Straw for the conservation of small quantities of substances, in particular biological liquids
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United States of America Patent
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Aug 7, 2007
Grant Date -
Dec 12, 2002
app pub date -
May 7, 2002
filing date -
May 7, 2001
priority date (Note) -
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Abstract
A straw (1) for the conservation of small quantities of substances, in particular biological substances, having a segment of tube provided inside one end with a stopper including gel powder, characterized in that a proportion of the gel powder is replaced with dispersed nonabsorbent material, the stopper thus having a mixture of gel powder and dispersed nonabsorbent material.
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