Registers – Records – Fluorescent – phosphorescent – radiation emitting
Reexamination Certificate
2008-01-29
2008-01-29
Le, Thien M. (Department: 2876)
Registers
Records
Fluorescent, phosphorescent, radiation emitting
C235S487000
Reexamination Certificate
active
07322530
ABSTRACT:
The invention relates to forgery-proof marking for objects, such as check cards, banknotes, labels, and the like, comprising a plastic transparent film (1) having a first and second surface, whereby a series of layers is applied to the second surface. When viewed from the first surface, the color of this series of layers changes according to the viewing angle, and the series of layers is formed from an absorber layer provided on the second surface, from a spacer layer (3) overlying the absorber layer, and from a mirror layer (2) overlying the spacer layer (3). In order to improve the machine identification of the authenticity of the marking, the invention provides that the absorber layer is comprised of metallic clusters (4).
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Bauer Georg
Domnick Ralph
Walter Harald
Fish & Richardson P.C.
Labaze Edwyn
Le Thien M.
november Aktiengesellschaft Gesellschaft fur Molekulare Medizin
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