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United States of America Patent
Stats
-
Nov 22, 1994
Issued Date -
N/A
app pub date -
Jul 30, 1992
filing date -
May 1, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for forestalling counterfeiting is disclosed which allows a counterfeit document to be identified relatively easily by an average person. The present invention employs a fluid jet applicator to record a unique, random pattern on each of a set of documents (e.g., paper currency, corporate or government bonds or any other document or important paper). Thus, a fluid jet applicator is controlled to produce a truly unique pattern on a set of original documents. Any counterfeiter who merely copies one (or a number) of the genuine documents would be left with a plurality of identical (i.e., non-unique) documents which may then be readily identified by a recipient as not being genuine.
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