US2598680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco product and method of manufacture
Assignee: General Cigar Co Inc
•
Filing: 1947-06-13
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Granted: 1952-06-03
•
Expires: 1967-06-13
Abstract
No abstract record available.
Inventors
- 👤 Walter G Frankenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:55
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12; A24B15/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE IMPROVED PROCESS OF CONVERTING TOBACCO INTO A PHYSICALLY CONTINUOUS AND COHERENT FORM ADAPTED FOR SMOKING, WHICH COMPRISES DRYGRINDING TOBACCO, MIXING THE DRY-GROUND TOBACCO AND A VISCOUS AQUEOUS SOLUTION OF A WATER-SOLUBLE CELLULOSE DERIVATIVE IN PROPORTIONS TO FORM A COHESIVE PASTE SUBSTANTIALLY FREE OF EXUDATION OF SAID SOLUTION, SAID VISCOUS AQUEOUS SOLUTION HAVING A VISCOSITY OF AT LEAST 1500 CENTIPOISES AT A TEMPERATURE OF 2K* C., SHAPING SAID PASTE, TREATING THE SHAPED PASTE WITH A TANNIN, AND DRYING SAID SHAPED AND TREATED PASTE INTO A PHYSICALLY CONTINUOUS AND COHERENT FORM ADAPTED FOR SMOKING.
Claim 2
Dependent Claim
88 words
IN THE MANUFACTURE OF SMOKING PRODUCTS, THE IMPROVEMENT WHICH COMPRISES DRY GRINDING TOBACCO, MIXING DRY-GROUND TOBACCO WITH A QUANTITY OF A VISCOUS AQUEOUS SOLUTION OF A WATERSOLUBLE CELLULOSE DERIVATIVE SUFFICIENT TO FORM A COHESIVE PASTE BUT INSUFFICIENT TO PERMIT EXUDATION OF SAID SOLUTION FROM SAID PASTE, SAID VISCOUS AQUEOUS SOLUTION HAVING A VISCOSITY OF AT LEAST 1500 CENTIPOSES AT A TEMPERATURE OF 25* C., PRESSING SAID PASTE INTO A THIN LAYER, APPLYING A TANNIN TO THE SURFACE OF SAID LAYER, AND DRYING SAID LAYER TO A COHERENT SHEET.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |