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Secure property document and method of manufacture

  • US 4,044,231 A
  • Filed: 05/27/1975
  • Issued: 08/23/1977
  • Est. Priority Date: 05/27/1975
  • Status: Expired due to Term
First Claim
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1. A fraud resistant document comprising:

  • a main body,a plurality of radiant energy reflectors overlying said main body in a data area for reflecting incident radiant energy of predetermined characterisitcs.a magnetic recording member overlying said radiant energy reflectors, said member being substantially transparent to said radiant energy and generally opaque to normal visible light whereby said reflectors are at least partially concealed against detection by the naked eye, anda layer of material on the bottom of said magnetic recording member having a lower reflector-receiving surface interfacing with said reflectors, said layer of material being substantially transparent to said radiant energy and said surface having known general microtopographical characteristics,said reflectors comprising thin elements particle deposited onto said reflector-receiving surface, each element having a reflective surface interfacing with said reflector-receiving surface and having substantially the same microtopographical characteristics as said reflector-receiving surface.

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