US2733720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
apfttf papfp wpappfp
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
•
Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:42
CPC Classifications
D; D21; D21H; D21H13/00; D21H13/36; D21H13/38; D21H13/42; D21H11/00; D21H17/00; D21H17/63; D21H17/66; D21H5/00; D21H5/12; D21H5/14; D21H5/16; D21H5/18; D21H5/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A HIGHLY COMBUSTIBLE CELLULOSIC PAPER CIGARETT WRAPPER THAT PRODUCES UPON BURNING OF THE CIGARETTE A WHITISH, SOLID, TUBE-LIKE ASH, SAID PAPER CONSISTING OF A PREDOMINANT PROPORTION OF CELLULOSIC FIBERS SELECTED FROM THE GROUP CONSISTING OF BAST FIBERS AND WOOD FIBERS, A CARBONATE FILLER, APPROXIMATELY 1% TO 5% ASBESTOS FIBERS, AND APPROXIMATELY 0.1% TO 1 1/2% OF A NON-EXPLOSIVE COMBUSTION SUPPORTING ALKALI METAL SALT, SAID ASBESTOS AND ALKALI METAL SALT COACTING TO PROVIDE THE AFORESAID ASHING CHARACTERISTICS OF THE CIGARETTE PAPER WRAPPER.
Claim 2
Dependent Claim
81 words
A HIGHLY COMBUSTIBLE CELLULOSIC PAPER CIGARETT WRAPPER THAT PRODUCES UPON BURNING OF THE CIGARETTE A WHITISH, SOLID, TUBE-LIKE ASH, SAID PAPER CONSISTING OF A PREDOMINANT PROPORTION OF CELLULOSIC FIBERS SELECTED FROM THE GROUP CONSISTING OF BAST FIBERS AND WOOD FIBERS, A CARBONATE FILLER, APPROXIMATELY 1% TO 5% ASBESTOS FIBERS, AND APPROXIMATELY 0.1% TO 1 1/2% OF A NON-EXPLOSIVE COMBUSTION SUPPORTING ALKALI METAL SALT, SAID ASBESTOS AND ALKALI METAL SALT COACTING TO PROVIDE THE AFORESAID ASHING CHARACTERISTICS OF THE CIGARETTE PAPER WRAPPER.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |