Patent US3110315A successfully refreshed from Google Patents.
US3110315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Denicotinization of tobacco
Assignee: Individual
•
Filing: 1960-07-27
•
Granted: 1963-11-12
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Expires: 1980-07-27
Abstract
No abstract record available.
Inventors
- 👤 Lendvai Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:14
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24D; A24D3/00; A24D3/06; A24D3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
THE METHOD OF TREATING TOBACCO SMOKE TO REDUCE THE PROPORTION OF HARMFUL COMPONENTS THEREIN WHICH COMPRISES CONTACTING TOBACCO SMOKE WITH THE TANNIC ACID ESTER
Claim 2
Independent Claim
24 words
THE METHOD OF TREATING TOBACCO SMOKE TO REDUCE THE PROPORTION OF HARMFUL COMPONENTS THEREIN WHICH COMPRISES CONTACTING TOBACCO SMOKE WITH THE TANNIC ACID ESTER
References Cited (Backward Citations)
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US740283A
Cited
US757514A
Cited
US802487A
Cited
US2108860A
Cited
US2162738A
Cited
US2478473A
Cited
US2582075A
Cited
GB755479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |