Patent US5735547A successfully refreshed from Google Patents.
US5735547A
Expired / Lapsed
US
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Anti-photographic/photocopy imaging process and product made by same
Assignee: BTG International Ltd
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Filing: 1997-01-03
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Granted: 1998-04-07
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Expires: 2017-01-03
Abstract
Abstract Several techniques to acquire a counterfeit proof security document. The invention includes improvements for use with non-replicable image line frequency techniques, as well as stand-along printing techniques, that exhibit electro-optical copy and photographic copy frustration characteristics such as experiences with use of color-graduated (tonally graded) substrates, blooming or flaring print patterns, pixel differentiation of discrete indicia and combinations of these with certain printing ink (or) varnish under/overcoat.
Inventors
- 👤 Fredric T. Morelle
- 👤 Ralph C. Wicker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:34
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/04; G03G21/043; B; B42; B42D; B42D25/00; B42D25/20; B42D25/29; G03G2215/00; G03G2215/00172; G03G2215/00206; G03G2215/00299; Y; Y10; Y10S; Y10S283/00; Y10S283/902
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
73 words
A method for making an image-bearing document non-counterfeitable with respect to a copier which employs an electro-optical scanning and sampling copy protocol comprising: identifying the blind or non-sampled zones in said copy protocol; preparing a document substrate; and placing indicia which comprise at least one image onto said document substrate so as to fall into areas that are not sampled by said copy protocol when said image-bearing document is copied by said copier.
Claim 2
Independent Claim
73 words
A method for making an image-bearing document non-counterfeitable with respect to a copier which employs an electro-optical scanning and sampling copy protocol comprising: identifying the blind or non-sampled zones in said copy protocol; preparing a document substrate; and placing indicia which comprise at least one image onto said document substrate so as to fall into areas that are not sampled by said copy protocol when said image-bearing document is copied by said copier.
Claim 3
Dependent Claim
47 words
The method of claim 1 wherein said placing is characterized by printing said indicia of said at least one image to uniformly misregister with sampling zones of said protocol of said copier thus effecting non-copyability of a portion of said at least one image by said copier.
Claim 4
Dependent Claim
55 words
The method of claim 2 wherein said printing to uniformly misregister is further characterized by selecting a frequency of said protocol and effecting said printing onto said document substrate at, near or at an integral factor of a recurring rate of said sampling zones and to register with blind or non-copy zones of said protocol.
Claim 5
Dependent Claim
18 words
The method of claim 3 wherein said preparing further comprises providing said substrate with a tonally graded hue.
Claim 6
Dependent Claim
19 words
The method of claim 4 wherein said hue comprises a portion of the color spectrum from white to yellow.
Claim 7
Dependent Claim
13 words
The method of claim 4 wherein said providing comprises printing with a varnish.
Claim 8
Independent Claim
99 words
A method for making a document, bearing a pattern of image-defining indicia and which is counterfeit-proof by an electro-optical copier having a scanning-sampling copy protocol, said protocol defined by sampling zone repetition with blind zones therebetween, said method comprising identifying said blind zones by ascertaining a sampling zone pattern and thereby the blind zones disposed between samples thereof and printing on a suitable substrate indicia of at least one image so that said indicia fall within said blind zones of said copier copy protocol, effecting upon copying by the copier, a distortion/decimation of said image in color or feature.
Claim 9
Independent Claim
99 words
A method for making a document, bearing a pattern of image-defining indicia and which is counterfeit-proof by an electro-optical copier having a scanning-sampling copy protocol, said protocol defined by sampling zone repetition with blind zones therebetween, said method comprising identifying said blind zones by ascertaining a sampling zone pattern and thereby the blind zones disposed between samples thereof and printing on a suitable substrate indicia of at least one image so that said indicia fall within said blind zones of said copier copy protocol, effecting upon copying by the copier, a distortion/decimation of said image in color or feature.
Claim 10
Dependent Claim
17 words
The method of claim 7 wherein said printing further comprises placing said indicia as uniformly recurring lineations.
Claim 11
Dependent Claim
25 words
The method of claim 8 wherein said uniformly recurring is a frequency or integral factor thereof being used by said copier in said scanning-sampling protocol.
Claim 12
Dependent Claim
20 words
The method of claim 9 wherein said method for making further comprises a step of selecting a tonally graded substrate.
Claim 13
Dependent Claim
71 words
A copier non-counterfeitable document comprising a substrate bearing thereon at least one image that is composed of lineate indicia which appear at lineation frequencies characteristic of a scanning-sampling copy protocol of said copier to effect registry with predetermined and positionally identified blind or non-copy zones of said copy protocol when said document is copied by said copier and thereby result in a copy which is ommissive and distorted in said image.
Claim 14
Dependent Claim
71 words
A copier non-counterfeitable document comprising a substrate bearing thereon at least one image that is composed of lineate indicia which appear at lineation frequencies characteristic of a scanning-sampling copy protocol of said copier to effect registry with predetermined and positionally identified blind or non-copy zones of said copy protocol when said document is copied by said copier and thereby result in a copy which is ommissive and distorted in said image.
Claim 15
Dependent Claim
28 words
The document of claim 11 wherein said indicia have a thickness ranging from about d/3 to about d/10 where d is at least one of said spatial frequencies.
Claim 16
Dependent Claim
21 words
The document of claim 11 further comprising said at least one image bearing therein indicia having reflective densities of about 0.01-0.10.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-06 | 2001-10-06 | 2002-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-06 | 2005-10-06 | 2006-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-06 | 2009-10-06 | 2010-04-07 | $7700.00 | Window Closed / Lapsed |