US3707975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter cigarette having apertured band
Assignee: Imperial Tobacco Ltd
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Filing: 1971-03-22
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Granted: 1973-01-02
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Expires: 1991-03-22
Abstract
Abstract A cigarette is disclosed having a wrapped tobacco portion and a two section stub secured to it by a band of impermeable material. Beneath the impermeable band, a band of highly permeable material is disposed. The impermeable band is provided with at least one opening adjustably located over the butt joint between the two sections of the stub whereby the amount of air passing into the butt may be controlled.
Inventors
- 👤 A Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:25
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/04; A24D3/043
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
20 words
A cigarette according to claim 1, wherein the said substantially impermeable layer of the band extends over the entire stub.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |