US3818915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco substitute smoking material
Assignee: Imperial Group PLC
•
Filing: 1971-03-18
•
Granted: 1974-06-25
•
Expires: 1991-03-18
Abstract
Abstract Tobacco substitute based smoking mixture with added protein and phenyl acetic acid and/or 2-phenyl ethanol. The protein serves to reduce or eliminate the intensity of the off-odours and offflavours of the smoke from the substitute smoking material and imparts a tobacco-like flavour and after-taste to the smoke. The phenyl acetic acid and/or 2-phenyl ethanol serve to mask any off-notes arising from the protein. The tobacco substitute base utilized is preferably a carbohydrate material which has been subjected to a catalytic degradation at a temperature of at least 200* C. to a point at which it constitutes about 90 percent or less of the dry weight of the original carbohydrate.
Inventors
- 👤 R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:20
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
A smoking mixture as claimed in claim 1 wherein the amount of pRotein to smoke-producing fuel is in the range 1:8 to 1:30.
Claim 2
Dependent Claim
36 words
A smoking mixture as claimed in claim 1 consisting essentially of the smoke-producing fuel, up to 7 percent by weight of protein, up to 0.02 percent of phenyl acetic acid and/or 0.2 percent of 2-phenyl ethanol.
Claim 3
Dependent Claim
16 words
A smoking mixture as claimed in claim 1 wherein the modified carbohydrate comprises thermally degraded cellulose.
Claim 4
Dependent Claim
18 words
A smoking mixture as claimed in claim 1 wherein the protein is pure protein free of residual fat.
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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) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |