Patent US4898188A successfully refreshed from Google Patents.
US4898188A
Expired / Lapsed
US
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Tobacco Processing
Assignee: RJ Reynolds Tobacco Co
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Filing: 1988-02-24
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Granted: 1990-02-06
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Expires: 2008-02-24
Abstract
Abstract Flue-cured tobacco can be treated with burley tobacco flavor components and subjected to volume expansion conditions. Flavor components are supercritically extracted from burley tabacco and directly applied to the flue-cured tobacco while the extraction fluid is in a supercritical or subcritical state.
Inventors
- 👤 Benjamin F. Niven, Jr.
- 👤 Charles D. Mays
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:02
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/24; A24B15/26
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
55 words
A process for extracting tobacco material, the process comprising: (a) extracting tobacco components from a first tobacco material in cut filler form with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid; and then directly (b) contacting the tobacco components extracted from the first tobacco material with a second tobacco material.
Claim 2
Dependent Claim
55 words
A process for extracting tobacco material, the process comprising: (a) extracting tobacco components from a first tobacco material in cut filler form with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid; and then directly (b) contacting the tobacco components extracted from the first tobacco material with a second tobacco material.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein the first tobacco material is Burley tobacco.
Claim 4
Dependent Claim
11 words
The process of claim 1 wherein the fluid is carbon dioxide.
Claim 5
Dependent Claim
23 words
The process of claim 1 wherein the second tobacco material is contacted with the fluid while the fluid is in a subcritical state.
Claim 6
Dependent Claim
18 words
The process of claim 1 wherein the second tobacco material is flue cured tobacco in cut filler form.
Claim 7
Dependent Claim
23 words
The process of claim 1 wherein the second tobacco material is contacted with the fluid while the fluid is in a supercritical state.
Claim 8
Dependent Claim
54 words
The process of claim 1, 2, 3, 4, 5 or 6 wherein the first and second tobacco materials each are contained in separate containers, and the fluid in a supercritical state and containing extracted tobacco components is passed from the container containing the first tobacco material to the container containing the second tobacco material.
Claim 9
Dependent Claim
55 words
A process for extracting tobacco material, the process comprising: (a) extracting tobacco components from tobacco material in laminae or whole leaf form with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid; and then directly (b) contacting the tobacco components extracted from the first tobacco material with a second tobacco material.
Claim 10
Dependent Claim
55 words
A process for extracting tobacco material, the process comprising: (a) extracting tobacco components from tobacco material in laminae or whole leaf form with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid; and then directly (b) contacting the tobacco components extracted from the first tobacco material with a second tobacco material.
Claim 11
Dependent Claim
12 words
The process of claim 8 wherein the tobacco material is Burley tobacco.
Claim 12
Dependent Claim
11 words
The process of claim 8 wherein the fluid is carbon dioxide.
Claim 13
Dependent Claim
23 words
The process of claim 8 wherein the second tobacco material is contacted with the fluid while the fluid is in a subcritical state.
Claim 14
Dependent Claim
18 words
The process of claim 8 wherein the second tobacco material is flue cured tobacco in cut filler form.
Claim 15
Dependent Claim
23 words
The process of claim 8 wherein the second tobacco material is contacted with the fluid while the fluid is in a supercritical state.
Claim 16
Dependent Claim
54 words
The process of claim 8, 9, 10, 11, 12 or 13 wherein the first and second tobacco materials each are contained in separate containers, and the fluid in a supercritical state and containing extracted tobacco components is passed from the container containing the first tobacco material to the container containing the second tobacco material.
Claim 17
Dependent Claim
87 words
A process for providing flavored smoking material, the process comprising: (a) extracting tobacco components from tobacco material from within a first container with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid; and then directly (b) contacting the extracted tobacco components from the tobacco material and within the fluid, while the fluid is in a supercritical or subcritical state, with a smokable material contained in a second container under conditions sufficient to provide smokable material in intimate contact with the extracted tobacco components.
Claim 18
Dependent Claim
87 words
A process for providing flavored smoking material, the process comprising: (a) extracting tobacco components from tobacco material from within a first container with a fluid under supercritical conditions thereby providing extracted tobacco components within the fluid; and then directly (b) contacting the extracted tobacco components from the tobacco material and within the fluid, while the fluid is in a supercritical or subcritical state, with a smokable material contained in a second container under conditions sufficient to provide smokable material in intimate contact with the extracted tobacco components.
Claim 19
Dependent Claim
11 words
The process of claim 15 wherein the fluid is carbon dioxide.
Claim 20
Dependent Claim
16 words
The process of claim 15 wherein the tobacco material is in cut filler or laminae form.
Claim 21
Dependent Claim
18 words
The process of claim 15 wherein the smokable material is tobacco material in cut filler or laminae form.
Claim 22
Dependent Claim
22 words
The process of claim 15 wherein the smokable material is contacted with the fluid while the fluid is in a supercritical state.
Claim 23
Dependent Claim
22 words
The process of claim 15 wherein the smokable material is contacted with the fluid while the fluid is in a subcritical state.
Claim 24
Dependent Claim
77 words
A process for transferring nicotine from one tobacco material to another, the process comprising: (a) extracting nicotine from a first tobacco material with a fluid under supercritical conditions thereby providing extracted nicotine within the fluid, and then directly (b) contacting the extracted nicotine within the fluid while the fluid is in a supercritical or subcritical state, with a second tobacco material under conditions sufficient to provide the second tobacco material in intimate contact with the extracted nicotine.
Claim 25
Dependent Claim
77 words
A process for transferring nicotine from one tobacco material to another, the process comprising: (a) extracting nicotine from a first tobacco material with a fluid under supercritical conditions thereby providing extracted nicotine within the fluid, and then directly (b) contacting the extracted nicotine within the fluid while the fluid is in a supercritical or subcritical state, with a second tobacco material under conditions sufficient to provide the second tobacco material in intimate contact with the extracted nicotine.
Claim 26
Dependent Claim
48 words
The process of claim 21 wherein the first and second tobacco materials each are contained in separate containers and the fluid in a supercritical state and containing supercritically extracted nicotine is passed from the container containing the first tobacco material to a container containing the second tobacco material.
Claim 27
Dependent Claim
13 words
The process of claim 21 or 22 wherein the fluid is carbon dioxide.
Claim 28
Dependent Claim
30 words
The process of claim 21 or 22 wherein the solubility of the extracted nicotine within the fluid is reduced when the extracted nicotine is contacted with the second tobacco material.
Claim 29
Dependent Claim
23 words
The process of claim 24 wherein the second tobacco material is contacted with the fluid while the fluid is in a supercritical state.
Claim 30
Dependent Claim
25 words
The process of claim 21 to 22 wherein the second tobacco material is contacted with the fluid while the fluid is in a supercritical state.
References Cited (Backward Citations)
US3424171A
Cited
US4153063A
Cited
US4150677A
Cited
US4215706A
Cited
US4243056A
Cited
US4289148A
Cited
US4461310A
Cited
US4506682A
Cited
US4531529A
Cited
US4577646A
Cited
US4714617A
Cited
US4561452A
Cited
US4727889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |