Security Document and Method for the Production Thereof
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United States of America Patent
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Issued Date -
May 29, 2008
app pub date -
May 19, 2004
filing date -
May 26, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a security document, useful in particular for preventing falsification and counterfeiting of payment vouchers or official documents by reproduction, characterized in that it includes, as security means, a security protection feature (M) consisting of a first feature (M1) formed from substances exhibiting an interferential effect and of a second feature (M2) formed from substances that react to certain stimulations, such as light radiation or thermal, magnetic, electromagnetic, electrical or microwave-type stimulation, giving a light response visible to the human eye or a specific signal detectable by means of a suitable apparatus. The invention also relates to the method of producing said document.
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