US2941906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco composition and smoking unit containing material for eliminating deleterious matter
Assignee: Minerals & Chemicals Corp Of A
•
Filing: 1957-12-26
•
Granted: 1960-06-21
•
Expires: 1977-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter L Haden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:07
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A SMOKING MIXTURE COMPRISING A MAJOR PORTION OF TOBACCO AND INTIMATELY ASSOCIATED WITH AT LEAST A PORTION OF SAID TOBACCO FINELY-DIVIDED THERMALLY DESULFATED SULFATE OF ALUMINUM.
Claim 2
Dependent Claim
26 words
A SMOKING MIXTURE COMPRISING A MAJOR PORTION OF TOBACCO AND INTIMATELY ASSOCIATED WITH AT LEAST A PORTION OF SAID TOBACCO FINELY-DIVIDED THERMALLY DESULFATED SULFATE OF ALUMINUM.
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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |