US2859753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cigarette wrapper material and method for producing same
Assignee: Rand Development Corp
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Filing: 1956-03-23
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Granted: 1958-11-11
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Expires: 1976-03-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Reuben Hitchcock
- 👤 Samuel Z Cardon
- 👤 Earl T Alvord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:40
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A CIGARETTE WRAPPER MATERIAL HAVING ADDED THERETO A COMPOUND WHICH RELEASES FREE AMMONIA UNDER SMOLDERING COMBUSTION CONDITIONS IN AN AMOUNT NOT LESS THAN ABOUT 1.2% TO ABOUT 2.1% BY WEIGHT OF SAID WRAPPER, SAID COMPOUND BEING EFFECTIVE TO ELIMATE NOT LESS THAN ABOUT 85% OF THE 3,4 BENZPYRENE CONTENT NORMALLY PRESENT IN THE COMBUSTION PRODUCTS OF SAID CIGARETTE WRAPPER MATERIAL BEFORE ADDITION OF SAID COMPOUND.
Claim 2
Dependent Claim
65 words
A CIGARETTE WRAPPER MATERIAL HAVING ADDED THERETO A COMPOUND WHICH RELEASES FREE AMMONIA UNDER SMOLDERING COMBUSTION CONDITIONS IN AN AMOUNT NOT LESS THAN ABOUT 1.2% TO ABOUT 2.1% BY WEIGHT OF SAID WRAPPER, SAID COMPOUND BEING EFFECTIVE TO ELIMATE NOT LESS THAN ABOUT 85% OF THE 3,4 BENZPYRENE CONTENT NORMALLY PRESENT IN THE COMBUSTION PRODUCTS OF SAID CIGARETTE WRAPPER MATERIAL BEFORE ADDITION OF SAID COMPOUND.
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) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |