Therochromatic ink covered article having image disposed thereon and method of making the same

  • US 6,281,165 B1
  • Filed: 01/29/1999
  • Issued: 08/28/2001
  • Est. Priority Date: 01/29/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A thermochromatic ink covered article, comprising:

  • a substrate;

    a thermochromatic ink layer disposed on said substrate;

    a protective coating over said thermochromatic ink layer; and

    a design disposed at least partially in said protective coating.

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