US2967118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco composition and smokable unit containing material for removing deleterious matter
Assignee: Minerals and Chemicals Philipp Corp
•
Filing: 1957-09-16
•
Granted: 1961-01-03
•
Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 Wright W Gary
- 👤 Albert J Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:11
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A SMOKING MIXTURE COMPRISING SHREDS OF TOBACCO COMMINGLED WITH A SMALL AMOUNT OF KAOLIN CLAY WHICH HAS BEEN REACTED WITH SULFURIC ACID AND THEN THERMALLY DESULFATED WITHOUT LEACHING OF WATER-SOLUBLE REACTION PRODUCTS THEREFROM.
Claim 2
Dependent Claim
33 words
A SMOKING MIXTURE COMPRISING SHREDS OF TOBACCO COMMINGLED WITH A SMALL AMOUNT OF KAOLIN CLAY WHICH HAS BEEN REACTED WITH SULFURIC ACID AND THEN THERMALLY DESULFATED WITHOUT LEACHING OF WATER-SOLUBLE REACTION PRODUCTS THEREFROM.
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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) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |