Effective life indicator and stopper including the same
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United States of America Patent
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May 24, 2016
Grant Date -
Oct 30, 2014
app pub date -
Apr 30, 2014
filing date -
Apr 30, 2013
priority date (Note) -
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Abstract
Provided is an effective life indicator and a stopper including the same, and more particularly, to an effective life indicator and a stopper including the same that are capable of allowing a consumer to easily check a drinkable or usable period after opening a beverage or medicine accommodated in a container by maintaining a state in which a development material receiving section is ruptured by a pressure applied to the container when the stopper is coupled to the container and starting an operation as a development material is leaked to the outside to come in contact with a development medium member when the stopper is initially separated from the container.
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