Patent US3398754A successfully refreshed from Google Patents.
US3398754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a reconstituted tobacco web
Assignee: Gallaher Ltd
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Filing: 1966-06-27
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Granted: 1968-08-27
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Expires: 1986-06-27
Abstract
No abstract record available.
Inventors
- 👤 Tughan Victor Denis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:10
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD OF PRODUCING A RECONSTITUTED TOBACCO WEB, SAID METHOD COMPRISING EXTRACTING FROM A SAMPLE OF TOBACCO ITS WATER SOLUBLE COMPONENTS WITH WATER TO FORM A SOLUTION, IMMEDIATELY FEEDING SAID SOLUTION TO A SPRAY DRIER WHEREBY SAID SOLUTION IS ATOMISED AND EVAPORATED WITH HOT AIR IN SAID SPRAY DRIER TO FORM A POWDER TOBACCO EXTRACT, BREAKING UP AND REFINING THE NONSOLUBLE RESIDUE OF SAID WATER EXTRACTION TO FORM A FIBROUS MASS, PREPARING A PAPER WEB FROM A SUSPENSION OF SAID FIBROUS MASS AND COATING AT LEAST ONE SURFACE OF SAID PAPER WEB WITH A CONCENTRATED SOLUTION OF SAID POWDERED TOBACCO EXTRACT IN WATER.
Claim 2
Independent Claim
103 words
A METHOD OF PRODUCING A RECONSTITUTED TOBACCO WEB, SAID METHOD COMPRISING EXTRACTING FROM A SAMPLE OF TOBACCO ITS WATER SOLUBLE COMPONENTS WITH WATER TO FORM A SOLUTION, IMMEDIATELY FEEDING SAID SOLUTION TO A SPRAY DRIER WHEREBY SAID SOLUTION IS ATOMISED AND EVAPORATED WITH HOT AIR IN SAID SPRAY DRIER TO FORM A POWDER TOBACCO EXTRACT, BREAKING UP AND REFINING THE NONSOLUBLE RESIDUE OF SAID WATER EXTRACTION TO FORM A FIBROUS MASS, PREPARING A PAPER WEB FROM A SUSPENSION OF SAID FIBROUS MASS AND COATING AT LEAST ONE SURFACE OF SAID PAPER WEB WITH A CONCENTRATED SOLUTION OF SAID POWDERED TOBACCO EXTRACT IN WATER.
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) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |