Patent US5407535A successfully refreshed from Google Patents.
US5407535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of lottery tickets
Assignee: Tumba Bruk AB
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Filing: 1993-05-24
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Granted: 1995-04-18
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Expires: 2013-05-24
Abstract
Abstract The invention relates to a new lottery ticket paper for the manufacture of different kinds of lottery tickets, especially of the "instant lottery ticket" type, and a method of manufacturing said tickets. The lottery ticket paper is characterized in that it comprises a colored, opaque base paper coated on both sides with a composition comprising at least one pigment, a filler, a binder solution, and optionally viscosity regulating agents and some kind of security element. The lottery ticket paper is protected against see-through and various kinds of forgery. It is an environmentally pleasing, nonexpensive and from the production-technical point of view suitable alternative to existing foil-laminated lottery ticket papers.
Inventors
- 👤 Erik Hansell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:35
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/40; D21H21/44; Y; Y10; Y10S; Y10S283/00; Y10S283/903; Y10S428/00; Y10S428/916
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
73 words
A method for making lottery tickets which comprises: forming a base paper completely filled with carbon black in an amount sufficient to render said base paper black and completely opaque; applying a bright coating comprising white pigment to said base layer which makes the coated surface of the paper suitable for printing with conventional techniques; printing a unique character combination on a coated surface; and covering said character combination with a latex coating.
Claim 2
Independent Claim
73 words
A method for making lottery tickets which comprises: forming a base paper completely filled with carbon black in an amount sufficient to render said base paper black and completely opaque; applying a bright coating comprising white pigment to said base layer which makes the coated surface of the paper suitable for printing with conventional techniques; printing a unique character combination on a coated surface; and covering said character combination with a latex coating.
Claim 3
Dependent Claim
29 words
A method as in claim 1 wherein the applying step comprises: applying a bright coating comprising white pigment and a security fiber to a side of said base layer.
Claim 4
Dependent Claim
29 words
A method as in claim 1 wherein the applying step comprises: applying a bright coating comprising white pigment and a security chemical to a side of said base layer.
Claim 5
Dependent Claim
29 words
A method as in claim 1 wherein the applying step comprises: applying a bright coating comprising titanium dioxide, clay, latex, and water to either side of said base layer.
Claim 6
Dependent Claim
29 words
A method as in claim 1 wherein the applying step comprises: applying a bright coating comprising white pigment and a melted plastic to a side of said base layer.
Claim 7
Independent Claim
95 words
A method for making lottery tickets which comprises: forming a base paper layer completely filled with carbon black in an amount sufficient to render said base paper black and completely opaque wherein said base paper exhibits a weight of about 100-300 g/m 2 ; and applying a bright coating comprising white pigment on both sides of said base paper layer which makes the coated surfaces of the paper suitable for printing with conventional techniques; printing a unique character combination on the surface of one coated side; and covering said character combination with a latex coming.
Claim 8
Independent Claim
95 words
A method for making lottery tickets which comprises: forming a base paper layer completely filled with carbon black in an amount sufficient to render said base paper black and completely opaque wherein said base paper exhibits a weight of about 100-300 g/m 2 ; and applying a bright coating comprising white pigment on both sides of said base paper layer which makes the coated surfaces of the paper suitable for printing with conventional techniques; printing a unique character combination on the surface of one coated side; and covering said character combination with a latex coming.
Claim 9
Dependent Claim
19 words
A method as in claim 6 wherein the coating on each side comprises 10-30 g. dry solids/m 2 .
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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) | 1998-04-17 | 1998-10-17 | 1999-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-17 | 2002-10-17 | 2003-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-17 | 2006-10-17 | 2007-04-18 | $7700.00 | Window Closed / Lapsed |