Carrier representing value and comprising patterns applied by a laser beam
First Claim
1. A carrier representing value, comprising:
- an identifying mark in said carrier, said identifying mark discernible with the naked eye; and
a laser perforated pattern comprising first and second features, said first feature being a symbol discernible with the naked eye and said second feature forming a portion of said first feature formed so small that said second feature cannot be seen with the naked eye; and
said symbol resembling said identifying mark.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a carrier representing value provided with recognizable pattern, for instance in the form of giro checks, bankchecks, banknotes, shares, bonds and other documents representing a value, wherein the patterns are formed by parts treated by means of a laser beam. This object is reached in that the patterns have been provided by means of a laser light beam. The use of a laser beam makes it possible to apply particularly fine structures which either cannot be applied with other treating methods, or only with the greatest financial effort. The use of laser beams enables variation of the width or depth of the channels or perforations which is almost impossible with other treating methods.
37 Citations
54 Claims
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1. A carrier representing value, comprising:
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an identifying mark in said carrier, said identifying mark discernible with the naked eye; and a laser perforated pattern comprising first and second features, said first feature being a symbol discernible with the naked eye and said second feature forming a portion of said first feature formed so small that said second feature cannot be seen with the naked eye; and said symbol resembling said identifying mark.
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2. A method for forming markings on a carrier representing value, comprising the steps of:
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printing a pattern on the carrier to provide a printed pattern; and perforating the carrier to provide a perforated pattern resembling the printed pattern;
the perforated pattern having first and second features, the first feature being a predefined shape sufficiently large in size that the predefined shape is discernible with a human eye, said second feature being a variation on the predefined shape and being of such a small size, that the second feature is not discernible by a human eye, thereby rendering the carrier difficult to forge as the second feature is not discernible by a human eye making exact duplication unlikely to protect against forgery, and making forgery easily detectable by comparing the perforated pattern with a perforated pattern on a forged carrier which lacks the second feature. - View Dependent Claims (3)
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4. A method for creating a fraud prevention device in a value-representing carrier, comprising the steps of:
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generating a pattern in the carrier to provide a generated pattern of a size such that the generated pattern is discernible with the naked eye; and perforating the carrier with a perforated pattern resembling the generated pattern, the perforated pattern including identifiable features of such a small size that said identifiable features cannot be discerned with the naked eye to protect against forgery of said carrier. - View Dependent Claims (5, 6, 7, 8)
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9. A carrier representing value having a printed pattern;
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a perforated pattern comprising perforations arranged to resemble said printed pattern, each of said perforations having first and second features, said first feature being a predefined shape sufficiently large in size that said predefined shape is discernible with a human eye, said second feature being a variation on said predefined shape and being of such small size, that the second feature is not discernible by a human eye, thereby rendering said carrier difficult to forge as said second feature is not discernible by a human eye making duplication unlikely to protect against forgery, and making forgery easily detectable by comparing said perforated pattern with a perforated pattern on a forged carrier which lacks a second feature. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification