Patent US2203421A successfully refreshed from Google Patents.
US3332428A
Expired / Lapsed
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Tobacco incorporating carbonate esters of flavorants
Assignee: Liggett Group LLC
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Filing: 1964-10-01
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Granted: 1967-07-25
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 James D Mold
- 👤 Andrew G Kallianos
- 👤 Frank A Shelburne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:40
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04; A; A23; A23L; A23L27/00; A23L27/20; A23L27/203; A23L27/70; A23L27/75; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24B15/34; C07H13/12; C08; C08B; C08B31/00; C08B31/02; C08B31/04; C08B37/00; C08B5/00; C11; C11B; C11B9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A SMOKING ARTICLE COMPRISING TOBACCO AND HAVING INCORPORATED IN SAID TOBACCO A MINOR PROPORTION OF A COMPOUND WHICH DECOMPOSES UPON IGNITION OF SAID TOBACCO THEREBY RELEASING FREE MENTHOL INTO THE SMOKE STREAM, SAID COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
38 words
A SMOKING ARTICLE COMPRISING TOBACCO AND HAVING INCORPORATED IN SAID TOBACCO A MINOR PROPORTION OF A COMPOUND WHICH DECOMPOSES UPON IGNITION OF SAID TOBACCO THEREBY RELEASING FREE MENTHOL INTO THE SMOKE STREAM, SAID COMPOUND HAVING THE GENERAL FORMULA:
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |