Method for forgery-proof labeling of items, and...

Details Method for forgery-proof labeling of items, and... Method for forgery-proof labeling of items, and...

2008-07-08

2008-07-08

Bashore, Alain L. (Department: 1792)

Coating processes

Fraud or tamper detecting

C427S162000, C359S002000

Reexamination Certificate

active

10363111

ABSTRACT:
The invention relates to a method for forgery-proof labeling of items, such as credit cards, bank notes and the like, comprising the following steps: (a) applying, to a first layer (1) that reflects electromagnetic waves, an inert second layer (3) that is permeable to electromagnetic waves, said second layer having a predetermined thickness, (b) applying, to said second layer (3), a third layer (4) that is formed by metal clusters, and (c) linking the first layer (1) of the label so produced with the item.

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patent: WO 98/48275 (1998-10-01), None
patent: WO 99/47702 (1999-09-01), None

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