Patent US4776353A successfully refreshed from Google Patents.
US4776353A
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Tobacco compositions, method and device for releasing essentially pure nicotine
Assignee: Leo AB
•
Filing: 1986-06-19
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Granted: 1988-10-11
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Expires: 2006-06-19
Abstract
Abstract Novel tobacco compositions which, when subjected to an elevated temperature below the combustion temperature of the tobacco, liberates essentially pure nicotine. The invention also includes a method for liberating nicotine from the compositions and a device for carrying out the method.
Inventors
- 👤 Jan E. Lilja
- 👤 Sven E. L. Nilsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:55
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/007; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/42; A24F; A24F42/00; A24F42/10; A24F40/00; A24F40/20; A24F40/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
66 words
A method of inhaling essentially pure nicotine from tobacco compositions comprising the step of mixing a tobacco material with water and a basic substance dissolved or dispersed in the water and heating the composition obtained to an elevated temperature below the combustion temperature of the tobacco but sufficiently high to liberate an effective amount of nicotine when air is drawn through the composition for inhalation purposes.
Claim 2
Independent Claim
66 words
A method of inhaling essentially pure nicotine from tobacco compositions comprising the step of mixing a tobacco material with water and a basic substance dissolved or dispersed in the water and heating the composition obtained to an elevated temperature below the combustion temperature of the tobacco but sufficiently high to liberate an effective amount of nicotine when air is drawn through the composition for inhalation purposes.
Claim 3
Dependent Claim
37 words
A method according to claim 1, wherein the temperature is between 30° and 200° C. the water before the heating step is present in the form of a water-containing salts, which upon the heating liberates the water.
Claim 4
Dependent Claim
18 words
The method of claim 1, wherein the tobacco material additionally contains oil and/or detergent and/or a flavoring agent.
Claim 5
Dependent Claim
14 words
The method of claim 2, wherein the temperature is between 50° and 100° C.
Claim 6
Dependent Claim
13 words
The method of claim 2, wherein the water-containing salt is soda or zeolite.
Claim 7
Dependent Claim
24 words
The method of claim 1, wherein the basic substance is selected from the group consisting of carbonates and hydroxides of sodium, potassium, and calcium.
Claim 8
Dependent Claim
24 words
The method of claim 1 wherein the water is present in amount of about 0.25 to 7 grams of water per gram of tobacco.
Claim 9
Dependent Claim
20 words
The method of claim 7 wherein the water is present in amount of about 1-5 grams per gram of tobacco.
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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) | 1991-10-11 | 1992-04-11 | 1992-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-11 | 1996-04-11 | 1996-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-11 | 2000-04-11 | 2000-10-11 | $7700.00 | Window Closed / Lapsed |