US3151118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing nicotine from tobacco
Assignee: RJ Reynolds Tobacco Co
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Filing: 1961-07-18
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Granted: 1964-09-29
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Expires: 1981-07-18
Abstract
No abstract record available.
Inventors
- 👤 Glenn P Moser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:02
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/24; A24B15/241; A24B15/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN A PROCESS FOR REMOVING NICOTINE FROM TOBACCO MATERIAL WHICH COMPRISES TREATING THE TOBACCO WITH AMMONIA AND STEAM TO DRIVE OFF IN VAPOR FORM FREE NICOTINE AND AMMONIA, THE IMPROVEMENT WHICH CONSISTS IN CONDENSING THE NICOTINE VAPORS SO-FORMED, TREATING THE CONDENSED NICOTINE VAPORS WITH AN AQUEOUS SOLUTION OF SODIUM HYDROXIDE WHEREBY SEPARATION OF A NICOTINE PHASE AND AN AQUEOUS SODIUM HYDROXIDE PHASE OCCURS, AND THEN REMOVING THE SO-SEPARATED NICOTINE PHASE.
Claim 2
Dependent Claim
70 words
IN A PROCESS FOR REMOVING NICOTINE FROM TOBACCO MATERIAL WHICH COMPRISES TREATING THE TOBACCO WITH AMMONIA AND STEAM TO DRIVE OFF IN VAPOR FORM FREE NICOTINE AND AMMONIA, THE IMPROVEMENT WHICH CONSISTS IN CONDENSING THE NICOTINE VAPORS SO-FORMED, TREATING THE CONDENSED NICOTINE VAPORS WITH AN AQUEOUS SOLUTION OF SODIUM HYDROXIDE WHEREBY SEPARATION OF A NICOTINE PHASE AND AN AQUEOUS SODIUM HYDROXIDE PHASE OCCURS, AND THEN REMOVING THE SO-SEPARATED NICOTINE PHASE.
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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |