US2547730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier and filler material
Assignee: Tobacco By-Products and Chemical Corp
•
Filing: 1946-09-13
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Granted: 1951-04-03
•
Expires: 1966-09-13
Abstract
No abstract record available.
Inventors
- 👤 Robert B Arnold
- 👤 Arthur L Galloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:19
CPC Classifications
C; C08; C08L; C08L99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
PROCESS FOR THE PRODUCTION OF A PRODUCT WHICH IS SUITABLE FOR USE AS A CARRIER AND FILLER MATERIAL WHICH COMPRISES SUBJECTING TOBACCO MATERIAL WHICH IN THE DRY STATE CONTAINS CONSIDERABLY MORE THAN 23 PERCENT BY WEIGHT OF WATER EXTRACTABLE CONSTITUENTS TO AN EXTRACTION TREATMENT WITH WATER IN QUANTITY SUFFICIENT TO YIELD A PRODUCT CONTAINING FROM 3% TO 23 PERCENT BY WEIGHT OF WATER SOLUBLE CONSTITUENTS, SEPARATING THE EXTRACTED RESIDUE FROM THE RESULTING SOLUTION AND DRYING THE EXTRACTED RESIDUE TO A MOISTURE CONTENT OF NOT MORE THAN 1 PERCENT BY WIEGHT AND HEATING THE SAME TO A TEMPERATURE OF AT LEAST 100* C. FOR A TIME SUFFICIENT TO SUBSTANTIALLY STERILIZE THE SAME BUT INSUFFICIENT TO CARBONIZE IT.
Claim 2
Dependent Claim
116 words
PROCESS FOR THE PRODUCTION OF A PRODUCT WHICH IS SUITABLE FOR USE AS A CARRIER AND FILLER MATERIAL WHICH COMPRISES SUBJECTING TOBACCO MATERIAL WHICH IN THE DRY STATE CONTAINS CONSIDERABLY MORE THAN 23 PERCENT BY WEIGHT OF WATER EXTRACTABLE CONSTITUENTS TO AN EXTRACTION TREATMENT WITH WATER IN QUANTITY SUFFICIENT TO YIELD A PRODUCT CONTAINING FROM 3% TO 23 PERCENT BY WEIGHT OF WATER SOLUBLE CONSTITUENTS, SEPARATING THE EXTRACTED RESIDUE FROM THE RESULTING SOLUTION AND DRYING THE EXTRACTED RESIDUE TO A MOISTURE CONTENT OF NOT MORE THAN 1 PERCENT BY WIEGHT AND HEATING THE SAME TO A TEMPERATURE OF AT LEAST 100* C. FOR A TIME SUFFICIENT TO SUBSTANTIALLY STERILIZE THE SAME BUT INSUFFICIENT TO CARBONIZE IT.
References Cited (Backward Citations)
US1823554A
Cited
US2343360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |