QUALITY ASSURANCE SYSTEM AND METHODS OF USE
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United States of America Patent
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Issued Date -
Mar 22, 2007
app pub date -
Aug 29, 2006
filing date -
Aug 31, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A quality assurance system having an ambient condition indicator provides a current visual indication of the cumulative exposure over time of a host product to an ambient condition such as temperature or humidity. The indicator's visual response is correlated with the response characteristics of any one of a wide range of specific host products including foods, drugs and vaccines, industrial and other products whose quality is related to condition-exposure over time. The system includes a historical record with one or more historical visual indications of past cumulative exposures. An airline meal can be accompanied by a novel freshness certification document which can simulate a travel document and provide, in a graphically appealing manner, a verified indication of the freshness of the meal served. Also disclosed are a novel quality assurance document and method and a cold chain monitor.
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