US2644462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco treatment
Assignee: General Cigar Co Inc
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Filing: 1947-11-01
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Granted: 1953-07-07
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Expires: 1967-11-01
Abstract
No abstract record available.
Inventors
- 👤 Walter G Frankenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:20
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/42; A24B15/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN THE FERMENTATION OF TOBACCO, THE IMPROVEMENT WHICH COMPRISES WETTING TOBACCO SUBSTANTIALLY UNIFORMLY WITH AN AQUEOUS SOLUTION OF A WATER-SOLUBLE, FERMENTATION CATALYST COMPOUND OF AN ELEMENT SELECTED FROM SERIES 4 OF THE MENDELEEFF PERIODIC TABLE AND HAVING AN ATOMIC NUMBER BETWEEN 25 AND 28, INCLUSIVE, AND SUBJECTING THE TOBACCO WITH THE THUS APPLIED CATALYST COMPOUND TO FERMENTATION IN THE TEMPERATURE RANGE OF ABOUT 16* TO 54* C.
Claim 2
Dependent Claim
67 words
IN THE FERMENTATION OF TOBACCO, THE IMPROVEMENT WHICH COMPRISES WETTING TOBACCO SUBSTANTIALLY UNIFORMLY WITH AN AQUEOUS SOLUTION OF A WATER-SOLUBLE, FERMENTATION CATALYST COMPOUND OF AN ELEMENT SELECTED FROM SERIES 4 OF THE MENDELEEFF PERIODIC TABLE AND HAVING AN ATOMIC NUMBER BETWEEN 25 AND 28, INCLUSIVE, AND SUBJECTING THE TOBACCO WITH THE THUS APPLIED CATALYST COMPOUND TO FERMENTATION IN THE TEMPERATURE RANGE OF ABOUT 16* TO 54* C.
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) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |