Patent US2613673A successfully refreshed from Google Patents.
US2613673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco sheet material and method of producing the same
Assignee: International Cigar Machinery Co
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Filing: 1946-07-11
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Granted: 1952-10-14
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Expires: 1966-07-11
Abstract
No abstract record available.
Inventors
- 👤 Paul A Sartoretto
- 👤 Jr Joseph H Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:20
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12; A24B15/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE METHOD OF RECONSTITUTING TOBACCO TO FORM SELF-SUPPORTING CONTINUOUS TOBACCO FILMS OR SHEETS FOR USE IN MAKING TOBACCO PRODUCTS FOR ORAL USE, COMPRISING REDUCING A QUANTITY OF TOBACCO TO A FINELY DIVIDED STATE, MIXING SAID TOBACCO WITH AN AQUEOUS FLUID, ADDING BETWEEN 1 AND 20% BY WEIGHT OF SAID TOBACCO OF A WATER DISPERSIBLE ACID REGENERATABLE CELLULOSE TO SAID MIXTURE, REDUCING SAID TOBACCO IN SAID MIXTURE TO A DISPERSION CONTAINING COLLOIDAL TOBACCO, ADDING ADDITIONAL AQUEOUS FLUID TO SAID MIXTURE TO INCREASE THE FLUIDITY THEREOF, ADDING A RELATIVELY SMALL QUANTITY OF ACID TO SAID DISPERSION TO REGENERATE THE DISPERSED CELLULOSE IN SAID TOBACCO DISPERSION, APPLYING SAID DISPERSION TO A FILM FORMING SURFACE, EVAPORATING MOISTURE FROM SAID MATERIAL ON SAID SURFACE, AND FORMING SUBSTANTIALLY WATER IMPERMEABLE RECONSTITUTED TOBACCO FILMS OR SHEETS, SAID FILMS OR SHEETS HAVING HIGH WET STRENGTH AND RETAINING SUBSTANTIALLY ALL NATURAL TOBACCO CHARACTERISTICS INCLUDING COLOR, TASTE AND AROMA.
Claim 2
Independent Claim
149 words
THE METHOD OF RECONSTITUTING TOBACCO TO FORM SELF-SUPPORTING CONTINUOUS TOBACCO FILMS OR SHEETS FOR USE IN MAKING TOBACCO PRODUCTS FOR ORAL USE, COMPRISING REDUCING A QUANTITY OF TOBACCO TO A FINELY DIVIDED STATE, MIXING SAID TOBACCO WITH AN AQUEOUS FLUID, ADDING BETWEEN 1 AND 20% BY WEIGHT OF SAID TOBACCO OF A WATER DISPERSIBLE ACID REGENERATABLE CELLULOSE TO SAID MIXTURE, REDUCING SAID TOBACCO IN SAID MIXTURE TO A DISPERSION CONTAINING COLLOIDAL TOBACCO, ADDING ADDITIONAL AQUEOUS FLUID TO SAID MIXTURE TO INCREASE THE FLUIDITY THEREOF, ADDING A RELATIVELY SMALL QUANTITY OF ACID TO SAID DISPERSION TO REGENERATE THE DISPERSED CELLULOSE IN SAID TOBACCO DISPERSION, APPLYING SAID DISPERSION TO A FILM FORMING SURFACE, EVAPORATING MOISTURE FROM SAID MATERIAL ON SAID SURFACE, AND FORMING SUBSTANTIALLY WATER IMPERMEABLE RECONSTITUTED TOBACCO FILMS OR SHEETS, SAID FILMS OR SHEETS HAVING HIGH WET STRENGTH AND RETAINING SUBSTANTIALLY ALL NATURAL TOBACCO CHARACTERISTICS INCLUDING COLOR, TASTE AND AROMA.
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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) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |