Antifalsification paper and other antifalsification items

Details Antifalsification paper and other antifalsification items Antifalsification paper and other antifalsification items

2006-09-19

2006-09-19

Fridie, Jr., Willmon (Department: 3722)

Printed matter

Having revealable concealed information, fraud preventer or...

C430S010000, C283S901000, C283S091000

Reexamination Certificate

active

07108286

ABSTRACT:
The present invention describes security paper and security items in general containing at least one security element having at least one photoluminescent segment characterized by a linearly polarized photoluminescence and/or a linearly polarized absorption. The present invention also describes a method of producing such security items as well as the use thereof.

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patent: 6594062 (2003-07-01), Weder et al.
patent: 0 342 929 (1989-11-01), None
patent: WO 98/01817 (1998-01-01), None
Christopher Weder et al. “Incorporation of Phtoluminescent Polarizers into liquid crystal Displays”, Science, vol. 279, Feb. 6, 1998,pp. 835-837.

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