Patent US3729009A successfully refreshed from Google Patents.
US3729009A
Expired / Lapsed
US
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Smoking product with improved flavor and method of making it
Assignee: Kimberly Clark Corp
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Filing: 1971-03-22
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Granted: 1973-04-24
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Expires: 1991-03-22
Abstract
Abstract A smoking product including a substantial proportion of tobacco stem material and incorporating carbamide and a saturated fatty acid composition having a carbon chain length of 16-18. The carbamide is present in an amount from 1.0 to 3.0 percent and the fatty acid is present in an amount of from 1.0 to 4.0 percent, by weight, of the stem material. The carbamide and fatty acid impart to the stem material, when it burns, some of the more pleasant taste and smell characteristics of burning tobacco leaf. The stem material may be in its natural state, but crushed, or it may be made into a reconstituted sheet or film.
Inventors
- 👤 C Stevens
- 👤 W Selke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:55
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24B15/32
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
17 words
A smoking product as defined in claim 1 wherein said fatty acid composition is essentially palmitic acid.
Claim 2
Dependent Claim
64 words
A smoking product as defined in claim 1 wherein said tobacco composition also includes non-tobacco cellulosic material, said carbamide being present in an amount from 1.0 to 3.0 percent, by weight, of the combined stem and non-tobacco cellulosic material, and said fatty acid composition being present in an amount from 1.0 to 4.0 percent, by weight, of the combined stem and non-tobacco cellulosic material.
Claim 3
Dependent Claim
21 words
A smoking product as defined in claim 1 wherein said tobacco composition comprises an intermixture of natural tobacco and reconstituted tobacco.
Claim 4
Dependent Claim
16 words
A smoking product as defined in claim 1 wherein said tobacco composition is essentially natural tobacco.
Claim 5
Dependent Claim
16 words
A smoking product as defined in claim 1 wherein said tobacco composition is essentially reconstituted tobacco.
Claim 6
Independent Claim
105 words
A method of making a smoking product, comprising the steps of providing a tobacco composition which includes a substantial proportion of tobacco stem material, and combining with said stem material carbamide and a saturated fatty acid having a carbon chain lEngth of 16-18, said carbamide being present in an amount from 1.0 to 3.0 percent, by weight, of the stem material, and said fatty acid being present in an amount from 1.0 to 4.0 percent, by weight, of the stem material, whereby said treated stem material, when it burns, has imparted to it some of the characteristic taste and smell of burning tobacco leaf lamina.
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |