Patent JPH03218663A successfully refreshed from Google Patents.
Patent US4715389A successfully refreshed from Google Patents.
US4715389A
Expired / Lapsed
US
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Cigarette
Assignee: RJ Reynolds Tobacco Co
•
Filing: 1986-09-15
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Granted: 1987-12-29
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Expires: 2006-09-15
Abstract
Abstract A cigarette having internal heat sinks of aluminum mesh and a section of carbonized flue-cured tobacco stem material containing adsorbed nicotine produces smoke having lower TPM and higher nicotine than smoke from conventional cigarettes.
Inventors
- 👤 Dwo Lynm
- 👤 Carl C. Morrison
- 👤 Ronald W. Hutcherson, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:07
CPC Classifications
A; A24; A24D; A24D1/00; A24D1/002
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
67 words
An improved cigarette affording an enhanced delivery of nicotine and a reduced delivery of particulate matter in the smoke which comprises a column of cigarette tobacco wrapped with cigarette paper, a plurality of segments of aluminum screen material axially aligned within the column of tobacco and a section of carbonized flue-cured tobacco stem material impregnated with nicotine axially aligned with said segments within said column of tobacco.
Claim 2
Dependent Claim
67 words
An improved cigarette affording an enhanced delivery of nicotine and a reduced delivery of particulate matter in the smoke which comprises a column of cigarette tobacco wrapped with cigarette paper, a plurality of segments of aluminum screen material axially aligned within the column of tobacco and a section of carbonized flue-cured tobacco stem material impregnated with nicotine axially aligned with said segments within said column of tobacco.
Claim 3
Dependent Claim
10 words
The cigarette of claim 1 wherein said plurality is four.
Claim 4
Dependent Claim
27 words
The cigarette of claim 2 wherein each of said segments is in the shape of a cylinder about 8 mm. long and about 2 mm. in diameter.
Claim 5
Dependent Claim
27 words
The cigarette of claim 1 wherein said section of carbonized flue-cured tobacco stem material is located at about the middle of the axial length of the cigarette.
Claim 6
Dependent Claim
25 words
The cigarette of claim 1 wherein said section of carbonized flue-cured tobacco stem material is about 10 mm. long and about 2 mm. in diameter.
Claim 7
Dependent Claim
22 words
The cigarette of claim 1 wherein said section of carbonized flue-cured tobacco stem material is impregnated with about 10 milligrams of nicotine.
Claim 8
Dependent Claim
47 words
The cigarette of claim 1 wherein said cigarette is a filter cigarette having a filter attached to one end of said column and said section of carbonized flue-cured stem material is located about two-thirds of the length of the column of cigarette tobacco away from the filter.
Claim 9
Dependent Claim
93 words
A filter cigarette which produces smoke having a lower ratio of TPM to nicotine than conventional filter cigarettes, which comprises a tobacco rod wrapped with cigarette paper and having a cellulose acetate tow filter attached to one end, said tobacco rod containing in axial alignment within the tobacco two aluminum mesh segments, one section of carbonized flue-cured tobacco stem material having about 10 mg. of nicotine adsorbed therein and two more aluminum mesh segments, respectively, each of said aluminum mesh segments being about 2 mm. in diameter and about 8 mm. in length.
Claim 10
Dependent Claim
93 words
A filter cigarette which produces smoke having a lower ratio of TPM to nicotine than conventional filter cigarettes, which comprises a tobacco rod wrapped with cigarette paper and having a cellulose acetate tow filter attached to one end, said tobacco rod containing in axial alignment within the tobacco two aluminum mesh segments, one section of carbonized flue-cured tobacco stem material having about 10 mg. of nicotine adsorbed therein and two more aluminum mesh segments, respectively, each of said aluminum mesh segments being about 2 mm. in diameter and about 8 mm. in length.
Claim 11
Dependent Claim
28 words
The cigarette of claim 8 wherein said section is located betwen one-half and two-thirds of the length of the tobacco rod from the filter end of the rod.
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) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |