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US2830596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of tobacco sheets
Assignee: General Cigar Co Inc
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Filing: 1955-09-23
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Granted: 1958-04-15
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Expires: 1975-09-23
Abstract
No abstract record available.
Inventors
- 👤 Walter G Frankenburg
- 👤 Alfred M Gottscho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:42
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A PROCESS FOR PRODUCING A TOBACCO SHEET FROM CIGARETTE TOBACCO HAVING A CONTENT OF CARBOHYDRATES, PECTINS AND PENTASONS TOTALING AT LEAST 15% BY WEIGHT, WHICH COMPRISES DISSOLVING ABOUT 2.2% TO 2.6% BY WEIGHT OF 400 CENTIPOISE GRADE METHYL CELLULOSE IN WATER, ADMIXING THE RESULTING SOLUTION WITH SAID CIGARETTE TOBACCO IN POWDERED FORM IN THE PROPORTIONS OF 2.5 TO 4.5 PARTS BY WEIGHT OF SAID SOLUTION TO EACH PART OF SAID CIGARETTE TABACCO TO YIELD A VISCOUS MIXTURE CONTAINING NOT MORE THAN 10 PARTS BY WEIGHT OF SAID METHYL CELLULOSE FOR EACH 100 PARTS OF SAID CIGARETTE TOBACCO, APPLYING SAID VISCOUS MIXTURE AS A THIN COATING ON A METAL SURFACE, DRYING SAID COATING BY CONTACT WITH AIR HEATED TO A TEMPERATURE IN THE RANGE OF 110*F. TO 160*F., MOISTENING THE DRIED COATING WITH ATOMIZED WATER, AND PEELING THE MOISTENED COATING FROM SAID METAL SURFACE AS A TOBACCO SHEET.
Claim 2
Dependent Claim
147 words
A PROCESS FOR PRODUCING A TOBACCO SHEET FROM CIGARETTE TOBACCO HAVING A CONTENT OF CARBOHYDRATES, PECTINS AND PENTASONS TOTALING AT LEAST 15% BY WEIGHT, WHICH COMPRISES DISSOLVING ABOUT 2.2% TO 2.6% BY WEIGHT OF 400 CENTIPOISE GRADE METHYL CELLULOSE IN WATER, ADMIXING THE RESULTING SOLUTION WITH SAID CIGARETTE TOBACCO IN POWDERED FORM IN THE PROPORTIONS OF 2.5 TO 4.5 PARTS BY WEIGHT OF SAID SOLUTION TO EACH PART OF SAID CIGARETTE TABACCO TO YIELD A VISCOUS MIXTURE CONTAINING NOT MORE THAN 10 PARTS BY WEIGHT OF SAID METHYL CELLULOSE FOR EACH 100 PARTS OF SAID CIGARETTE TOBACCO, APPLYING SAID VISCOUS MIXTURE AS A THIN COATING ON A METAL SURFACE, DRYING SAID COATING BY CONTACT WITH AIR HEATED TO A TEMPERATURE IN THE RANGE OF 110*F. TO 160*F., MOISTENING THE DRIED COATING WITH ATOMIZED WATER, AND PEELING THE MOISTENED COATING FROM SAID METAL SURFACE AS A TOBACCO SHEET.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |