Patent US4407443A successfully refreshed from Google Patents.
US4407443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamper-indicating sheet
Assignee: Ludlow Corp
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Filing: 1979-01-29
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Granted: 1983-10-04
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Expires: 1999-01-29
Abstract
Abstract A novel lottery ticket comprising a blush-type coating which coating is characterized by susceptibility to a change in appearance when exposed to either (a) any of a wide spectrum of organic solvents or (b) an elevated temperature. Such susceptibility reveals that solvent or thermal techniques have been used in tampering with the ticket or a pouch package in which the ticket is held. Such tampering is often the result of an illicit attempt to obtain information about the indicia printed on the ticket.
Inventors
- 👤 James McCorkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:58
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/06; A63F3/065; A63F3/0685; Y; Y10; Y10S; Y10S428/00; Y10S428/916; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/1307
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
89 words
In a thermally-sensitive blush coating comprised of a mass of light-scattering, polymeric particles which are adapted to coalesce to a more compact coating on application of heat thereto, the improvement wherein said mass of particles is in intimate contact with a minor amount of a binder composition which, on exposure to any of a wide spectrum of aromatic or aliphatic solvents, will form means to substantially impair the light-scattering character of said mass of polymeric particles and transform said mass of particles into a more compact, normally translucent, coating.
Claim 2
Dependent Claim
89 words
In a thermally-sensitive blush coating comprised of a mass of light-scattering, polymeric particles which are adapted to coalesce to a more compact coating on application of heat thereto, the improvement wherein said mass of particles is in intimate contact with a minor amount of a binder composition which, on exposure to any of a wide spectrum of aromatic or aliphatic solvents, will form means to substantially impair the light-scattering character of said mass of polymeric particles and transform said mass of particles into a more compact, normally translucent, coating.
Claim 3
Dependent Claim
26 words
A blush coating as defined in claim 1 wherein said binder comprises solvent-leachable plasticizer components which form means to accelerate coalescence of said primary resin particles.
Claim 4
Dependent Claim
90 words
A blush coating as defined in claims 1 or 2 wherein said binder is thermally-activatable to allow coalescence of said primary coating at a temperature which is in the range of about 140°-220° F. and is below the coalescence temperature of the primary-resin when thermally activated without said binder system, wherein said binder is thermally-activatable to allow coalescence of said primary coating at a temperature which is in the range of about 140°-220° F. and is below the coalescence temperature of the primary-resin when thermally activated without said binder system.
Claim 5
Dependent Claim
30 words
A blush coating as defined in claim 3 wherein said binder is present in the coating in a volume of 10-25% based on total volume of solids in said coating.
Claim 6
Dependent Claim
30 words
A blush coating as defined in claim 2 wherein said binder is present in the coating in a volume of 10-25% based on total volume of solids in said coating.
Claim 7
Dependent Claim
30 words
A blush coating as defined in claim 1, wherein said binder is present in the coating in a volume of 10-25% based on total volume of solids in said coating.
Claim 8
Dependent Claim
107 words
A lottery ticket comprising, as an integral portion thereof, a means for detecting thermal and solvent tampering with said ticket, a blush coating comprised of a mass of light-scattering, polymeric particles which are adapted to coalesce to a more compact coating on application of heat thereto, the improvement wherein said mass of particles is in intimate contact with a minor amount of a binder composition which, on exposure to any of a wide spectrum of aromatic or aliphatic solvents, will form means to substantially impair the light-scattering character of said mass of polymeric particles and transform said mass of particles into a more compact, normally translucent, coating.
Claim 9
Dependent Claim
107 words
A lottery ticket comprising, as an integral portion thereof, a means for detecting thermal and solvent tampering with said ticket, a blush coating comprised of a mass of light-scattering, polymeric particles which are adapted to coalesce to a more compact coating on application of heat thereto, the improvement wherein said mass of particles is in intimate contact with a minor amount of a binder composition which, on exposure to any of a wide spectrum of aromatic or aliphatic solvents, will form means to substantially impair the light-scattering character of said mass of polymeric particles and transform said mass of particles into a more compact, normally translucent, coating.
Claim 10
Dependent Claim
26 words
A lottery ticket as defined in claim 7 wherein said binder comprises solvent-leachable plasticizer components which form means to accelerate coalescence of said light scattering particles.
Claim 11
Dependent Claim
51 words
A lottery ticket as defined in claims 7 or 8 wherein said binder is thermally-activatable to allow coalescence of said light-scattering resin at a temperature which is in the range of about 140°-220° F. and is below the coalescence temperature of the light-scattering resin when thermally activated without said binder system.
Claim 12
Dependent Claim
30 words
A lottery ticket as defined in claim 9 wherein said binder is present in the coating in a volume of 10-25% based on total volume of solids in said coating.
Claim 13
Dependent Claim
36 words
A lottery ticket as defined in claim 9 wherein said blush coating is adjacent a colored substrate and wherein, on being coalesced, said blush coating forms a translucent means to permit viewing of said colored substrate.
Claim 14
Dependent Claim
30 words
A lottery ticket as defined in claim 8 wherein said binder is present in the coating in a volume of 10-25% based on total volume of solids in said coating.
Claim 15
Dependent Claim
36 words
A lottery ticket as defined in claim 8 wherein said blush coating is adjacent a colored substrate and wherein, on being coalesced, said blush coating forms a translucent means to permit viewing of said colored substrate.
Claim 16
Dependent Claim
30 words
A lottery ticket as defined in claim 7, wherein said binder is present in the coating in a volume of 10-25% based on total volume of solids in said coating.
Claim 17
Dependent Claim
36 words
A lottery ticket as defined in claim 14 wherein said blush coating is adjacent a colored substrate and wherein, on being coalesced, said blush coating forms a translucent means to permit viewing of said colored substrate.
Claim 18
Dependent Claim
36 words
A lottery ticket as defined in claim 7 wherein said blush coating is adjacent a colored substrate and wherein, on being coalesced, said blush coating forms a translucent means to permit viewing of said colored substrate.
Claim 19
Dependent Claim
83 words
In a pouch formed of a sheet material comprising (a) polymer-based cohesive seal and (b) a polymer-based coating formed of small thermoplastic polymeric particles deposited in intimate contact with another within said pouch-forming sheet material, and wherein the appearance of said based coating is irreversibly and substantially changed by subjecting said polymeric particles to temperatures of at least 140° F. the improvement wherein said polymer-based coating comprises a binder composition with a solvent-leachable plasticizer component forming means to accelerate said change in appearance.
Claim 20
Dependent Claim
83 words
In a pouch formed of a sheet material comprising (a) polymer-based cohesive seal and (b) a polymer-based coating formed of small thermoplastic polymeric particles deposited in intimate contact with another within said pouch-forming sheet material, and wherein the appearance of said based coating is irreversibly and substantially changed by subjecting said polymeric particles to temperatures of at least 140° F. the improvement wherein said polymer-based coating comprises a binder composition with a solvent-leachable plasticizer component forming means to accelerate said change in appearance.
Claim 21
Dependent Claim
33 words
A secure package resistant to undetectable inspection and formed of a pouch as defined in claim 17 and comprising therewithin articles marked for indicating a winning or losing status in a lottery system.
Claim 22
Dependent Claim
32 words
A pouch as defined in claim 17 wherein said polymer based coating comprises a binder wherein said binder comprises solvent-leachable plasticizer components which form means to accelerate coalescence of said small particles.
Claim 23
Dependent Claim
52 words
A pouch as defined in claim 17 or 19 wherein said binder is thermally-activatable to allow coalescence of said small particles at a temperature which is in the range of about 140°-220° F. and is below the coalescence temperature of the small particles when they are thermally activated without said binder system.
Claim 24
Dependent Claim
34 words
A pouch as defined in claim 20 wherein said polymer-based coating is adjacent a colored substrate and wherein, on being coalesced, said blush coating forms translucent means to permit viewing of said colored substrate.
Claim 25
Dependent Claim
34 words
A pouch as defined in claim 19 wherein said polymer-based coating is adjacent a colored substrate and wherein, on being coalesced, said blush coating forms translucent means to permit viewing of said colored substrate.
Claim 26
Dependent Claim
34 words
A pouch as defined in claim 17 wherein said polymer-based coating is adjacent a colored substrate and wherein, on being coalesced, said blush coating forms translucent means to permit viewing of said colored substrate.
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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) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |