US3194245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a tobacco product of increased wet strength
Assignee: Philip Morris USA Inc
•
Filing: 1962-10-04
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Granted: 1965-07-13
•
Expires: 1982-10-04
Abstract
No abstract record available.
Inventors
- 👤 Allan B Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:12
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF FORMING A TOBACCO SHEET MATERIAL OF INCREASED WET STRENGTH COMPRISING PREPARING A SLURRY OF FINELY REDUCED TOBACCO PARTS IN WATER, THE SAID TOBACCO PARTS BEING PRESENT IN AN AMOUNT IN THE RANGE OF 3% TO 8% WITH A SUBSTANTIAL PROPORTION REDUCED TO A GELATINOUS STATE, CASTING A FILM OF SAID SLURRY ON A FLAT TRAVELING SUPPORTING SURFACE, PASSING THE SUPPORTING SURFACE AND FILM THROUGH A DRYING ZONE HAVING AN ATMOSPHERE IN THE TEMPERATURE RANGE OF 120*C. TO 160*C., HEATING THE FILM IN SAID DRYING ZONE UNTIL THE TEMPERATURE OF THE FILM REACHES THE BOILING POINT OF WATER, WHEREBY THE FREE WATER IS RE-
Claim 2
Independent Claim
106 words
A METHOD OF FORMING A TOBACCO SHEET MATERIAL OF INCREASED WET STRENGTH COMPRISING PREPARING A SLURRY OF FINELY REDUCED TOBACCO PARTS IN WATER, THE SAID TOBACCO PARTS BEING PRESENT IN AN AMOUNT IN THE RANGE OF 3% TO 8% WITH A SUBSTANTIAL PROPORTION REDUCED TO A GELATINOUS STATE, CASTING A FILM OF SAID SLURRY ON A FLAT TRAVELING SUPPORTING SURFACE, PASSING THE SUPPORTING SURFACE AND FILM THROUGH A DRYING ZONE HAVING AN ATMOSPHERE IN THE TEMPERATURE RANGE OF 120*C. TO 160*C., HEATING THE FILM IN SAID DRYING ZONE UNTIL THE TEMPERATURE OF THE FILM REACHES THE BOILING POINT OF WATER, WHEREBY THE FREE WATER IS RE-
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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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |