Holographic check authentication article
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United States of America Patent
Stats
-
Jun 3, 1997
Issued Date -
N/A
app pub date -
Jun 28, 1994
filing date -
Apr 16, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of making a document, such as a check or stock certificate, having enhanced security against counterfeiting. The document includes a strip of foil having a three dimensional light diffracting image thereon affixed to the document. The strip of foil may be affixed to the document before or after the background printing or face printing of the document is completed. In this manner, the light diffracting strip may be printed on by the background and face printing of the document as desired.
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