Tamper evident and counterfeit resisting informational article and associated method

  • US 6,364,994 B1
  • Filed: 09/30/1996
  • Issued: 04/02/2002
  • Est. Priority Date: 07/17/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of protecting an informational article, on which variable information is inserted, from photocopy duplication and alteration, said method comprising:

  • providing an informational article substrate having a zone for inserting said variable information and a refractive image disposed within said zone;

    inserting said variable information in said zone so that at lest a portion of said variable information is disposed over said refractive image; and

    securing a transparent tape having a write resistant exposed surface over said variable information, whereby said refractive image will resist photocopy duplication of said informational article and said write-resistant exposed surface will resist alteration of said inserted variable information.

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