Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
April 6, 2010
Patent Application Number
10816132
Date Filed
March 31, 2004
Patent Primary Examiner
Patent abstract
Numerous embodiments of a carrier substrate having thermochromatic materials are described. In one embodiment of the present invention, a carrier substrate has a visible surface, and a thermochromatic material is disposed near the carrier substrate. The thermochromatic material produces a visual change of the visible surface when an activation temperature of the thermochromatic material is reached.
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