Security strips
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United States of America Patent
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-
Aug 15, 2006
Grant Date -
May 20, 2004
app pub date -
Feb 28, 2002
filing date -
Mar 1, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Security strips for identifying the genuineness of sheet material such as documents, securities and banknotes. The security strips are constructed of several different components, encoding means and electrically conductive layers connected in different arrangements on a support substrate. Layers of known per se electrically conductive polymers are being used. The security strips are applied on the sheet material or they are integrated in the sheet material. These security strips constitute insurmountable technological obstacles for a forger.
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