US4589686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticounterfeiting method and device
Assignee: Individual
•
Filing: 1982-06-28
•
Granted: 1986-05-20
•
Expires: 2002-06-28
Abstract
Abstract A method of making a security device and the device are disclosed, wherein an embossable material is applied to a substrate in multiply connected regions. (A multiply connected region is one that has more than one continuous boundary). The regions have sufficient density of coverage to cause the embossable material to appear substantially continuous to the unaided eye. A diffractive pattern is embossed into a plurality of the regions and a transparent coating is applied thereover to bond firmly to the substrate and embossable material. Removal of the transparent coating results in observable damage to the security device.
Inventors
- 👤 Stephen P. McGrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:34
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/18; G02B5/1842; G03; G03H; G03H1/00; G03H1/0005; G03H1/0011; Y; Y10; Y10S; Y10S428/00; Y10S428/916
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
115 words
A method of making a security device, comprising: preparing a diffractive pattern as a surface relief pattern; applying embossable material to a substrate in such a way that said embossable material covers portions of said substrate and does not cover other portions of said substrate to form multiply connected regions of said embossable material on said substrate, said regions being of sufficient density of coverage that said embossable material appears substantially continuous to the unaided human eye; embossing said surface relief pattern into said embossable material; and coating said embossable material and substrate with a transparent material which binds firmly to said embossable material and portions of said substrate not covered with said embossable material.
Claim 2
Independent Claim
115 words
A method of making a security device, comprising: preparing a diffractive pattern as a surface relief pattern; applying embossable material to a substrate in such a way that said embossable material covers portions of said substrate and does not cover other portions of said substrate to form multiply connected regions of said embossable material on said substrate, said regions being of sufficient density of coverage that said embossable material appears substantially continuous to the unaided human eye; embossing said surface relief pattern into said embossable material; and coating said embossable material and substrate with a transparent material which binds firmly to said embossable material and portions of said substrate not covered with said embossable material.
Claim 3
Dependent Claim
31 words
The method of claim 1, with the embossed surface of said embossable material being coated with a layer of reflectance-enhancing material before said embossable material is coated with said transparent material.
Claim 4
Dependent Claim
106 words
A security device comprising: an embossable material applied to a substrate in multiply connected regions, said regions having sufficient density of coverage to cause the embossable material to appear substantially continuous to the unaided human eye; a diffractive pattern embossed into a plurality of regions of said embossable material; and a transparent coating applied to said embossable material and portions of said substrate not covered with said embossable material, said coating bonded firmly to said substrate and said embossable material in such a way that removal of said coating from said substrate and embossable material is likely to result in observable damage to said security device.
Claim 5
Dependent Claim
106 words
A security device comprising: an embossable material applied to a substrate in multiply connected regions, said regions having sufficient density of coverage to cause the embossable material to appear substantially continuous to the unaided human eye; a diffractive pattern embossed into a plurality of regions of said embossable material; and a transparent coating applied to said embossable material and portions of said substrate not covered with said embossable material, said coating bonded firmly to said substrate and said embossable material in such a way that removal of said coating from said substrate and embossable material is likely to result in observable damage to said security device.
Claim 6
Dependent Claim
21 words
The security device of claim 3 wherein said diffractive pattern embossed into said embossable material is coated with a reflectance-enhancing material.
References Cited (Backward Citations)
US1354471A
Cited
US898369A
Cited
US2492738A
Cited
US2770166A
Cited
US2805599A
Cited
US2982176A
Cited
US3083615A
Cited
US3296594A
Cited
US3580655A
Cited
US3506327A
Cited
US3838903A
Cited
US3412493A
Cited
US3407405A
Cited
US3758186A
Cited
US3546374A
Cited
US3578845A
Cited
US3894787A
Cited
US3708217A
Cited
GB1394021A
Cited
US3858977A
Cited
GB1384281A
Cited
US4033059A
Cited
US3947105A
Cited
AU7376274A
Cited
US3961836A
Cited
US3957354A
Cited
US4017158A
Cited
US4034211A
Cited
US4124947A
Cited
GB1517840A
Cited
US4062628A
Cited
US4155627A
Cited
FR2345770A1
Cited
US4171766A
Cited
US4186943A
Cited
US4179182A
Cited
US4244633A
Cited
EP0012375A2
Cited
US4304809A
Cited
EP0043509A1
Cited
GB2082505A
Cited
DE3035684A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |