Patent EP0186755A2 successfully refreshed from Google Patents.
Patent US3030963A successfully refreshed from Google Patents.
US3030963A
Expired / Lapsed
US
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Cigarette construction
Assignee: SAMUEL L COHN
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Filing: 1960-11-18
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Granted: 1962-04-24
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Expires: 1980-11-18
Abstract
No abstract record available.
Inventors
- 👤 Charles C Cohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:55
CPC Classifications
A; A24; A24D; A24D1/00; A24D1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A CIGARETTE CONSTRUCTION COMPRISING A COMBUSTIBLE WRAPPER, A BODY OF TOBACCO CONTAINED BY SAID WRAPPER, AND DRY, WATER-CONTAINING DEPOSITS OF A WATER-SOLUBLE SILICATE ON SAID WRAPPER EFFECTIVELY PROVIDING AN ALL OVER PATTERN OF NON-COMBUSTIBLE WRAPPER AREAS SEPARATED BY COMBUSTIBLE WRAPPER AREAS, EACH OF SAID SILICATE DEPOSITS CONTAINING AT LEAST 0.013 GRAM OF SILICA PER SQUARE CENTIMETER OF WRAPPER AREA COVERED BY SAID DEPOSIT, BEING THEREBY ADAPTED FOR FOAMING UP UNDER THE HEAT OF THE BURNING CIGARETTE TO PROVIDE A PROTUBERANCE FOR BEING INTERPOSED BETWEEN THE BURNING PORTION OF THE CIGARETTE AND A SUPPORTING SURFACE UNDERLYING THE CIGARETTE, AND FOR HOLDING THE BURNING PORTION OF THE CIGARETTE ELEVATED FROM THE SUPPORTING SURFACE.
Claim 2
Dependent Claim
111 words
A CIGARETTE CONSTRUCTION COMPRISING A COMBUSTIBLE WRAPPER, A BODY OF TOBACCO CONTAINED BY SAID WRAPPER, AND DRY, WATER-CONTAINING DEPOSITS OF A WATER-SOLUBLE SILICATE ON SAID WRAPPER EFFECTIVELY PROVIDING AN ALL OVER PATTERN OF NON-COMBUSTIBLE WRAPPER AREAS SEPARATED BY COMBUSTIBLE WRAPPER AREAS, EACH OF SAID SILICATE DEPOSITS CONTAINING AT LEAST 0.013 GRAM OF SILICA PER SQUARE CENTIMETER OF WRAPPER AREA COVERED BY SAID DEPOSIT, BEING THEREBY ADAPTED FOR FOAMING UP UNDER THE HEAT OF THE BURNING CIGARETTE TO PROVIDE A PROTUBERANCE FOR BEING INTERPOSED BETWEEN THE BURNING PORTION OF THE CIGARETTE AND A SUPPORTING SURFACE UNDERLYING THE CIGARETTE, AND FOR HOLDING THE BURNING PORTION OF THE CIGARETTE ELEVATED FROM THE SUPPORTING SURFACE.
References Cited (Backward Citations)
GB190122161A
Cited
US1905416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |