Patent US2797689A successfully refreshed from Google Patents.
US2797689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco products and process therefor
Assignee: General Cigar Co Inc
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Filing: 1955-04-11
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Granted: 1957-07-02
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Expires: 1975-04-11
Abstract
No abstract record available.
Inventors
- 👤 Walter G Frankenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:22
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12; A24B15/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN THE MANUFACTURE OF TOBACCO SMOCKING PRODUCTS FROM TOBACCO AND A WATER-INSOLUBLE CELLULOSE DERIVATIVE, USED AS A BINDING AGENT FOR SAID TOBACCO, THE IMPROVEMENT OF DISPERSING A FINELY DIVIDED NON-WATER-SWELLING SILICEOUS CATALYST SUBSTANTIALLY UNIFORMLY IN SAID CELLULOSE DERIVATIVE, WHILE SAID CELLULOSE DERIVATIVE IS IN A FLUID CONDITION, TO SUPPRESS THE EVOLUTION OF UNDESIRABLE GASES FROM SAID CELLULOSE DERIVATIVE DURING THE SMOCKING OF SAID SMOKING PRODUCTS, SAID SILLICEOUS CATALYST AMOUNTING TO AT LEAST ABOUT 20% BY WEIGHT OF SAID CELLULOSE DERIVATIVE.
Claim 2
Dependent Claim
80 words
IN THE MANUFACTURE OF TOBACCO SMOCKING PRODUCTS FROM TOBACCO AND A WATER-INSOLUBLE CELLULOSE DERIVATIVE, USED AS A BINDING AGENT FOR SAID TOBACCO, THE IMPROVEMENT OF DISPERSING A FINELY DIVIDED NON-WATER-SWELLING SILICEOUS CATALYST SUBSTANTIALLY UNIFORMLY IN SAID CELLULOSE DERIVATIVE, WHILE SAID CELLULOSE DERIVATIVE IS IN A FLUID CONDITION, TO SUPPRESS THE EVOLUTION OF UNDESIRABLE GASES FROM SAID CELLULOSE DERIVATIVE DURING THE SMOCKING OF SAID SMOKING PRODUCTS, SAID SILLICEOUS CATALYST AMOUNTING TO AT LEAST ABOUT 20% BY WEIGHT OF SAID CELLULOSE DERIVATIVE.
References Cited (Backward Citations)
US2613673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |