Patent US4570650A successfully refreshed from Google Patents.
US4570650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cigarette
Assignee: Individual
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Filing: 1983-07-28
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Granted: 1986-02-18
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Expires: 2003-07-28
Abstract
Abstract A cigarette has a front tobacco-containing part composed of a tubular member of cigarette paper and a tobacco filler, a rear part extending rearwardly from the front part and having a filter, and a tubular coating extending around at least one fourth of the length of the front part from the rear end of the latter, so as to extinguish the cigarette when the flame reaches this region and prevent smoking of the cigarette in this region. The tubular coating is formed of one piece with a tubular connector which connects the filter with the tobacco-containing part of the cigarette.
Inventors
- 👤 Vladimir Sirota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:01
CPC Classifications
A; A24; A24D; A24D1/00; A24D1/02; A24D1/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
177 words
A cigarette, comprising a front part including a tubular member which is composed of a cigarette paper, and a tobacco filler accommodated in said tubular member, said front part having front and rear ends and a predtermined length therebetween; a rear part extending rearwardly from said rear end of said front part and having a filter, said front part and said rear part being in abutting relationship to one another over said rear end of said front part and a front end of said rear part; and a one-piece element extending over said rear part and further forwardly beyond said rear end of said front part over said front part partially over its length, said one-piece element immovably connecting said rear part with said front part and being provided with a fire resistant layer applied over at least a portion of its length, so that said one-piece element forms simultaneously a tubular connector connecting said front and rear parts with one another and a tubular coating which extinguishes a tobacco fire after burning of said front part.
Claim 2
Dependent Claim
177 words
A cigarette, comprising a front part including a tubular member which is composed of a cigarette paper, and a tobacco filler accommodated in said tubular member, said front part having front and rear ends and a predtermined length therebetween; a rear part extending rearwardly from said rear end of said front part and having a filter, said front part and said rear part being in abutting relationship to one another over said rear end of said front part and a front end of said rear part; and a one-piece element extending over said rear part and further forwardly beyond said rear end of said front part over said front part partially over its length, said one-piece element immovably connecting said rear part with said front part and being provided with a fire resistant layer applied over at least a portion of its length, so that said one-piece element forms simultaneously a tubular connector connecting said front and rear parts with one another and a tubular coating which extinguishes a tobacco fire after burning of said front part.
Claim 3
Dependent Claim
33 words
A cigarette as defined in claim 1, wherein said one-piece element extends from said rear end of said front part over a length substantially equal to 1/3 the length of said front part.
Claim 4
Dependent Claim
27 words
A cigarette as defined in claim 1, wherein said fire resistant layer applied on said one-piece element is formed as a layer of a fire resistant substance.
Claim 5
Dependent Claim
49 words
A cigarette as defined in claim 1, wherein said fire resistant layer is heatable upon approach of tobacco fire thereto, so that when a user holds cigarette in his fingers he feels the heat of said fire resistant layer, thus obtaining a signal about fire propagation to said layer.
Claim 6
Dependent Claim
24 words
A cigarette as defined in claim 1, wherein said one-piece element has a front end portion which is provided with a plurality of perforations.
Claim 7
Dependent Claim
27 words
A cigarette as defined in claim 1, wherein said one-piece element has a front end which is provided with a plurality of teeth-like projections extending forwardly therefrom.
Claim 8
Dependent Claim
25 words
A cigarette as defined in claim 1, wherein said one-piece element has a plurality of perforations which are distributed substantially uniformly over its entire length.
Claim 9
Dependent Claim
23 words
A cigarette as defined in claim 1, wherein said fire resistant layer provided on said one-piece element is formed as a metal foil.
Claim 10
Dependent Claim
23 words
A cigarette as defined in claim 1, wherein said fire resistant layer on said one-piece element is formed as an electro-chemically deposited layer.
Claim 11
Dependent Claim
24 words
A cigarette as defined in claim 1, wherein said fire resistant layer is formed as a material impregnated by diffussion into said one-piece element.
Claim 12
Dependent Claim
32 words
A cigarette as defined in claim 1, wherein said additional layer applied on said one piece element is formed as a separate part arranged on and connected with said one piece element.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |