US3878850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoking mixture
Assignee: Imperial Group PLC
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Filing: 1972-08-24
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Granted: 1975-04-22
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Expires: 1992-08-24
Abstract
Abstract A smoking mixture comprising a smoke-producing substrate (particularly a tobacco substitute or a blend with tobacco) fortified by nicotine and a substance producing acidic matter in the smoke to counteract chokiness. Volatile acids, or substances pryolysing to volatile acids or weak base salts may be used.
Inventors
- 👤 James Gibson
- 👤 Colin James Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:49
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
A SMOKING MIXTURE COMPRISING A SMOKE-PRODUCING SUBSTRATE CONTAINING A MODIFIED CARBOHYDRATE AND FORTIFIED BY NICOTINE, SAID MIXTURE CONTAINING ALSO LACTIC ACID PRESENT IN A QUANTITY SUFFICIENT TO REDUCE THE CHOKINESS OR CHOKY FLAVOR EFFECT OF THE SMOKE AS CAUSED BY THE NICOTINE FORTIFICATION, THE QUANTITY SUOF SAID ACID BEING NO MORE THAN TWICE THE PROPORTION BY WEIGHT OF THE NICOTINE AND THE MODIFIED CARBOHYDRATE BEING THE PRODUCT OBTAINED BY CATALYTIC THERMAL DEGRADATION OF CARBOHYDRATE AT A TEMPERATURE ABOVE 100*C UNTIL THE WEIGHT OF THE DEGRADED CARBOHYDRATE IS LESS THAN 90 PERCENT OF THE WEIGHT OF THE ORIGINAL CARBOHYDRATE.
Claim 2
Dependent Claim
98 words
A SMOKING MIXTURE COMPRISING A SMOKE-PRODUCING SUBSTRATE CONTAINING A MODIFIED CARBOHYDRATE AND FORTIFIED BY NICOTINE, SAID MIXTURE CONTAINING ALSO LACTIC ACID PRESENT IN A QUANTITY SUFFICIENT TO REDUCE THE CHOKINESS OR CHOKY FLAVOR EFFECT OF THE SMOKE AS CAUSED BY THE NICOTINE FORTIFICATION, THE QUANTITY SUOF SAID ACID BEING NO MORE THAN TWICE THE PROPORTION BY WEIGHT OF THE NICOTINE AND THE MODIFIED CARBOHYDRATE BEING THE PRODUCT OBTAINED BY CATALYTIC THERMAL DEGRADATION OF CARBOHYDRATE AT A TEMPERATURE ABOVE 100*C UNTIL THE WEIGHT OF THE DEGRADED CARBOHYDRATE IS LESS THAN 90 PERCENT OF THE WEIGHT OF THE ORIGINAL CARBOHYDRATE.
Claim 3
Dependent Claim
98 words
A smoking mixture comprising a smoke-producing substrate containing a modified carbohydrate and fortified by nicotine, said mixture containing also lactic acid present in a quantity sufficient to reduce the chokiness or choky flavor effect of the smoke as caused by the nicotine fortification, the quantity of said acid being no more than twice the proportion by weight of the nicotine and the modified carbohydrate being the product obtained by catalytic thermal degradation of carbohydrate at a temperature above 100*C until the weight of the degraded carbohydrate is less than 90 percent of the weight of the original carbohydrate.
Claim 4
Dependent Claim
98 words
A smoking mixture comprising a smoke-producing substrate containing a modified carbohydrate and fortified by nicotine, said mixture containing also lactic acid present in a quantity sufficient to reduce the chokiness or choky flavor effect of the smoke as caused by the nicotine fortification, the quantity of said acid being no more than twice the proportion by weight of the nicotine and the modified carbohydrate being the product obtained by catalytic thermal degradation of carbohydrate at a temperature above 100*C until the weight of the degraded carbohydrate is less than 90 percent of the weight of the original carbohydrate.
Claim 5
Dependent Claim
27 words
A smoking mixture according to claim 1 wherein the smoke-producing substrate contains a modified cellulose manufactured by heating Alpha -cellulose at 100*-250*C in presence of ammonium sulphamate.
Claim 6
Dependent Claim
20 words
A smoking material according to claim 1 wherein the smoke-producing substrate contains up to 80 percent by weight of tobacco.
References Cited (Backward Citations)
US1996002A
Cited
US2739599A
Cited
US2809904A
Cited
US3003895A
Cited
US3545448A
Cited
US3385303A
Cited
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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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |