Warning tag and method for providing an indication relevant to shelf life of a product
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United States of America Patent
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Oct 7, 2014
Grant Date -
Aug 30, 2012
app pub date -
Jan 31, 2012
filing date -
Feb 25, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A warning tag for providing an indication relevant to shelf life of a product is to be disposed on a product. The warning tag includes a storage unit, a clock unit, a control unit and a warning unit. The storage unit stores product information of the product. The product information includes time data associated with end of the shelf life of the product. The clock unit generates a current time. The control unit is electrically coupled to the storage unit and the clock unit, and outputs a warning signal based on the current time and the end of the shelf life of the product. The warning unit is electrically coupled to the control unit, and generates the indication according to the warning signal.
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