US3682883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for extraction of solanum alkaloids
Assignee: GD Searle LLC
•
Filing: 1970-02-12
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Granted: 1972-08-08
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Expires: 1990-02-12
Abstract
Abstract EXTRACTION OF SOLANUM PLANTS, PREFERABLY IN THE DRY STATE, WITH AN AQUEOUS ALCOHOLIC SOLUTION CONTAINING 5070% OF THE ALCOHOL FOLLOWED BY BASIFICATION OF THE RESULTING SOLUTION AND EXTRACTION OF THE RESULTING PRECIPITATE AFFORDS AN EXCELLENT YIELD OF SOLANUM GLYCOALKALOIDS, E.G. SOLASONINE, SOLAMARGINE, DEMISSINE AND TOMATINE, IN A HIGH STATE OF PURITY. SUITABLE ALCOHOLS ARE ETHANOL, PROPANOL AND ISOPROPANOL.
Inventors
- 👤 Humberto Flores Beltran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:31
CPC Classifications
A; A61; A61K; A61K36/00; A61K36/18; A61K36/185; A61K36/81
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |