Thermal exchange composition-containing packs with color signaling covers
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United States of America Patent
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Issued Date -
Mar 21, 2013
app pub date -
Nov 7, 2011
filing date -
Sep 16, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to thermal exchange products having color change properties. More particularly, the invention relates to thermal-exchange compositions in pack form suitable for heating in a microwave oven and/or cooling in a freezer and having covers that provide a notification by color change signal that the pack is at a temperature or in a temperature range suitable to provide a desired level of hot and/or cold treatment.
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