US3632384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making cigarette paper with ash-retaining means
Assignee: SAINT PASTOU JOSEPH
•
Filing: 1968-07-02
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Granted: 1972-01-04
•
Expires: 1988-07-02
Abstract
Abstract This disclosure concerns cigarette paper which has an open network consisting of a flameproof substance intended to maintain ashes in place after combustion of the tobacco and of the paper, characterized by the fact that the elements forming said network are slightly profiled and that the junction points of these elements are reinforced in order to give the assembly sufficient rigidity. The disclosure also concerns a process for making this cigarette paper and cigarettes using such paper.
Inventors
- 👤 Joseph Saint-Pastou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:24
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H23/56; D21H23/58; A; A24; A24D; A24D1/00; A24D1/02; D21H17/00; D21H17/63; D21H17/67; D21H27/00; D21H27/02; D21H5/00; D21H5/12; D21H5/14; D21H5/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
19 words
A method according to claim 1, in which said impregnant material is deposited on both sides of said paper.
References Cited (Backward Citations)
US2049320A
Cited
GB421236A
Cited
US2147889A
Cited
US2380047A
Cited
US2398844A
Cited
US2772184A
Cited
US2962385A
Cited
US2985175A
Cited
US3373052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |