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Deactivation and coding system for a contactless antitheft or identification label

  • US 5,608,380 A
  • Filed: 05/18/1995
  • Issued: 03/04/1997
  • Est. Priority Date: 05/18/1994
  • Status: Expired due to Fees
First Claim
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1. A contactless label for antitheft or identification purposes, comprising an electric circuit, wherein the label comprises a pyrotechnic mixture which is provided adjacent at least one electroconductive connection of the electric circuit, in such a manner that the pyrotechnic mixture upon being ignited severs the electroconductive connection by combustion, with the electrical properties of the electric circuit altering as a result of the severance of the electroconductive connection.

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