US2003101624A1PendingUtilityA1

Shoe insoles with thermal-color coating

17
Priority: Nov 30, 2001Filed: Nov 30, 2001Published: Jun 5, 2003
Est. expiryNov 30, 2021(expired)· nominal 20-yr term from priority
Inventors:Kevin Mcnamara
A43B 3/30A43D 1/022A43B 1/0027
17
PatentIndex Score
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Claims

Abstract

An insole includes a layer of thermal-color agent coated on a top surface thereof and the color of the layer is subjected to change when the temperature of the foot is applied thereto. By this way, the real size of the foot can be obtained for a period of time.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . An insole for shoes comprising: 
 an insole body and a thermal-color layer coated on the insole body, said thermal-color layer changing its color by temperature difference.

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