US3892244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoking mixtures
Assignee: Imperial Group PLC
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Filing: 1974-09-20
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Granted: 1975-07-01
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Expires: 1994-09-20
Abstract
Abstract Tobacco substitute materials in which the main constituent is a thermally degraded carbohydrate obtained by subjecting a carbohydrate, such as cellulose to a catalysed degradation process at a temperature of at least 100* C, are treated with a flavorant compound having the general formula WHERE X2 is an alkyl radical of one to four carbon atoms. The specific flavorants disclosed are maltol, dihydromaltol, ethylmaltol, isomaltol and 2-hydroxy- Beta -methyl- gamma hexenolactone.
Inventors
- 👤 Robert Craig Anderson
- 👤 Alain Calder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:09
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24B15/36; A24B15/40; A24B15/403; A24B15/406
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
19 words
A SMOKING MIXTURE COMPRISING A THERMALLY DEGRADED CARBOHYDRATE TOBACCO SUBSTITUTE AND, AS A FLACOURANT, A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
19 words
A SMOKING MIXTURE COMPRISING A THERMALLY DEGRADED CARBOHYDRATE TOBACCO SUBSTITUTE AND, AS A FLACOURANT, A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
17 words
A smoking mixture according to claim 1 wherein the solid combustible material is a thermally degraded cellulose.
Claim 4
Dependent Claim
20 words
A smoking mixture according to claim 1 wherein the proportion of the said flavourant is less than 2% by weight.
Claim 5
Dependent Claim
23 words
A smoking mixture according to claim 1 wherein the said flavourant is maltol, dihydromaltol, ethylmaltol, isomaltol or Alpha -hydroxy- Beta -methyl- gamma -hexenolactone.
Claim 6
Dependent Claim
21 words
A smoking mixture according to claim 4 wherein the proportion of said flavourant is from 0.7 to 1.5 parts by weight.
Claim 7
Dependent Claim
10 words
A smoking mixture according to claim 1 blended with tobacco.
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) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |