US3223090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reconstituted tobacco products and method of making same
Assignee: Brown and Williamson Holdings Inc
•
Filing: 1963-09-11
•
Granted: 1965-12-14
•
Expires: 1983-09-11
Abstract
No abstract record available.
Inventors
- 👤 David G Strubel
- 👤 Jr Charles J Moll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:30
CPC Classifications
A; A24; A24B; A24B3/00; A24B3/14; A24B15/00; A24B15/10; A24B15/12; A24B3/18; A24B3/182; A24B3/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AS PROCESS FOR MAKING RECONSTITUTED TOBACCO AND RECONSTITUTED SMOKING TOBACCO PRODUCTS WHICH COMPRISES: PREPARING A MIXTURE OF A MAJOR PORTION OF WATER AND A MINOR PORITON OF FINELY COMMINUTED TOBACCO, FORMING SAID MIXTURE INTO A PREDETERMINED CONFIGURATION, FLASH FREEZING SAID FORMED CONFIGURATION BY SUBJECTING IT TO A TEMPERATURE SUBSTANTIALLY LOWER THAN THE FREEZING POINT OF WATER SO THAT SAID CONFIGURATION IS RAPIDLY SET AND THEN FREEZE DRYING SAID SET CONFIGURATION BY SUBJECTING IT TO A TEMPERATURE BELOW THE FREEZING POINT OF SAID MIXTURE AND AT A REDUCED PRESSURE OF LESS THAN APPROXIMATELY 5 MM. ABSOLUTE IN WHICH THE VAPOR AND SOLID PHASES OF SAID WATER SUBSTANTIALLY EXIST SIMULTANEOUSLY SO THAT THE WATER IS SUBLIMED THEREFROM.
Claim 2
Dependent Claim
115 words
AS PROCESS FOR MAKING RECONSTITUTED TOBACCO AND RECONSTITUTED SMOKING TOBACCO PRODUCTS WHICH COMPRISES: PREPARING A MIXTURE OF A MAJOR PORTION OF WATER AND A MINOR PORITON OF FINELY COMMINUTED TOBACCO, FORMING SAID MIXTURE INTO A PREDETERMINED CONFIGURATION, FLASH FREEZING SAID FORMED CONFIGURATION BY SUBJECTING IT TO A TEMPERATURE SUBSTANTIALLY LOWER THAN THE FREEZING POINT OF WATER SO THAT SAID CONFIGURATION IS RAPIDLY SET AND THEN FREEZE DRYING SAID SET CONFIGURATION BY SUBJECTING IT TO A TEMPERATURE BELOW THE FREEZING POINT OF SAID MIXTURE AND AT A REDUCED PRESSURE OF LESS THAN APPROXIMATELY 5 MM. ABSOLUTE IN WHICH THE VAPOR AND SOLID PHASES OF SAID WATER SUBSTANTIALLY EXIST SIMULTANEOUSLY SO THAT THE WATER IS SUBLIMED THEREFROM.
References Cited (Backward Citations)
US236510A
Cited
US2734510A
Cited
US1211361A
Cited
US2225774A
Cited
US2344106A
Cited
US2411152A
Cited
US2528476A
Cited
US2707472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |