Method of making tamper evident and counterfeit resisting informational article

  • US 5,595,624 A
  • Filed: 11/17/1994
  • Issued: 01/21/1997
  • Est. Priority Date: 07/17/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of protecting an informational article comprising:

  • providing an article having a first zone for inserting information and a pattern disposed within said zone;

    inserting information in said zone;

    securing a transparent tape over said information, whereby said pattern will resist photocopy duplication of said article and said tape will resist alteration of said inserted information;

    employing a refractive image as said pattern;

    employing a hologram as said refractive image;

    providing on said tape a coating of a silicone resin on the exposed surface thereof;

    providing about 2 1/2 to 10 percent by weight wax in said silicone resin;

    employing a polytetrafluoroethylene wax as said wax;

    adhesively bonding said tape over said inserted information;

    adhesively bonding a portion of said tape to said article prior to inserting said information; and

    inserting said information by manual or printing means.

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