Security marking label, particularly for motor vehicle

Details Security marking label, particularly for motor vehicle Security marking label, particularly for motor vehicle

1998-06-17

2001-10-09

Fridie, Jr., Willmon (Department: 3722)

Printed matter

Having revealable concealed information, fraud preventer or...

Identifier

C283S074000, C283S091000, C283S107000, C283S109000, C283S904000

Reexamination Certificate

active

06299213

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention pertains to highly secure marking labels for the visible or partially coded identification of a glass panel such as an automobile windshield. The information must be definitively affixed to the interior of the passenger compartment, on the glass panel, and be visible from the exterior. This can be the case for documents such as, for example, automobile registration stickers, proof of insurance or tax stickers. These documents bear general information supplemented by specific information pertaining to the vehicle or its owner.
2. Description of Related Art
Various types of such labels are already known in the state of the art. One can cite French patent FR 2716559 pertaining to a plaque designed for marking, certification and/or control operations which can be applied on a transparent support surface. It comprises a plastic film support, an imprint on its first surface and a first transparent adhesive layer applied on this imprint, as well as a first removable protective coating. A second adhesive layer is applied to the second support surface and is covered by a second removable protective coating. A control coupon is applied on the second coating by means of a third adhesive layer. The support and the coupon bear mutually corresponding information. Nevertheless, the devices according to the state of the art do not provide a high level of security against fraud, and it is relatively easy to peel off an original document and to modify the personalization information in an undetectable manner.
SUMMARY OF THE INVENTION
The object of the present invention is to resolve this drawback by proposing a highly secure marking label that limits the possibilities of fraud stemming from either forgery or reuse of an original label.
For this purpose, the invention pertains more specifically to a highly secure marking label to be affixed on a transparent support such as a vehicle windshield and bearing information specific to the marked support, characterized in that it is constituted by a complex formed by two superimposed elements, between which is interposed a marking element, with at least one of said elements exhibiting a layer that assures bonding onto the transparent support and with at least one of said elements bearing a diffraction grating.
Advantageously, the first element is formed by a transparent plastic film bearing on one of its surfaces an adhesive to enable bonding of said element onto the transparent support to be marked and exhibiting on the other surface an easily broken layer and a transparent lacquer layer stamped with a holographic image.
Said transparent lacquer layer is preferably stamped with a holographic image that covers the entire surface of said element.
According to a preferred mode of implementation, the second element is appreciably larger than the first element.
The second element is preferably constituted by a transparent film coated with an easily broken layer and a layer of metallized lacquer stamped with a holographic image and by an adhesive capable of bonding said element onto the transparent support to be marked and onto the element.
According to a variant, the second element in addition bears an adhesive layer for the gluing on of a protective film.
According to a first mode of implementation, the personalization information is printed on the stamped surface of the first element.
According to a second mode of implementation, the personalization information is printed on the marking element.
According to a third mode of implementation, some of the personalization information is masked by a spectrally selective transmission layer.
According to a specific mode of realization, the first element comprises a layer of lacquer that is opaque in the visible and transparent in a given wavelength band such that the coded information is hidden from unauthorized persons.


REFERENCES:
patent: 4608288 (1986-08-01), Spindler
patent: 44 05 946 C1 (1995-06-01), None
patent: 44 14 149 A1 (1995-11-01), None
patent: 0 170 712 A1 (1986-02-01), None
patent: 0 218 524 A1 (1987-04-01), None
patent: 0 505 689 A1 (1992-09-01), None
patent: 2 699 312 (1994-06-01), None

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