Patent US4184495A successfully refreshed from Google Patents.
US4184495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for incorporating flavorant into cellulosic substrates and products produced thereby
Assignee: Philip Morris USA Inc
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Filing: 1978-06-29
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Granted: 1980-01-22
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Expires: 1998-06-29
Abstract
Abstract Stable cellulosic products containing releasable flavorant are described. These products are produced by impregnating a dry cellulosic substrate with an essentially anhydrous ammonia solution of a volatile flavorant and then subjecting the impregnated substrate to conditions of temperature and pressure sufficient to effect evaporation of essentially all of the impregnated solvent.
Inventors
- 👤 Norman B. Rainer
- 👤 Peter A. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:41
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/281; A24B15/282; A24D; A24D1/00; A24D1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
An improved stable, flavored unitary smoking article comprising a tubular paper wrapper enclosing a tobacco or tobacco-substitute filler wherein at least the tipping portion of the wrapper contains from about 0.2% to 2.0% of a volatile flavorant based on the dry weight of the wrapper which is physically entrapped by and in physical contact with the wrapper structure and is not released therefrom until the wrapper is contacted with either heat or moisture.
Claim 2
Dependent Claim
73 words
An improved stable, flavored unitary smoking article comprising a tubular paper wrapper enclosing a tobacco or tobacco-substitute filler wherein at least the tipping portion of the wrapper contains from about 0.2% to 2.0% of a volatile flavorant based on the dry weight of the wrapper which is physically entrapped by and in physical contact with the wrapper structure and is not released therefrom until the wrapper is contacted with either heat or moisture.
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) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |