Packaging locking and indication system
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United States of America Patent
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Feb 3, 2015
Grant Date -
May 26, 2011
app pub date -
Apr 15, 2009
filing date -
Apr 16, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A device for dispensing a material that has a limited period of utility, a novel device comprises a first part containing the material and a second part, wherein the first and second parts have mutual engagement means and can be disengaged to allow the material to be dispensed, wherein the device includes, located within the device, control mechanisms that can be activated to initiate a time-controlled period of use and that, at the end of that period, causes the first and second parts to be permanently engaged.
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