US2621133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing lecithin derivatives and compositions comprising same
Assignee: Keever Starch Co
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Filing: 1948-12-29
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Granted: 1952-12-09
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Expires: 1968-12-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Gaver
- 👤 Esther P Lasure
- 👤 Levi M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:26
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/11; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10; C07F9/103; D06M13/00; D06M13/322; D06M13/44; D06M13/453
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
PROCESS FOR PREPARING A COMPOSITION INCLUDING A STABLE WATER-DISPERSIBLE LECITHIN DERIVATIVE COMPRISING THE STEPS OF SELECTING A LECITHIN HAVING AT LEAST ONE UNSATURATED FATTY ACID ESTER AND HAVING A HYDROXYL GROUP ATTACHED TO THE NITROGEN ATOM AND SUBJECTING THE LECITHIN TO GLYCOLIC OXIDATION BY MIXING THE LECITHIN WITH AN OXIDANT SELECTED FROM THE GROUP CONSISTING OF SODIUM PERBORATE, BARIUM CHLORATE, ALKALING PERMANGANATE, SODIULM CARBONATE PEROXIDE, SODIUM PHOSPHATE PEROXIDE, AND HYDROGEN PEROXIDE IN WATER WITH A SUFFICIENT AMOUNT OF THE OXIDANT AND A SUFFICIENT ALKALINITY IN THE MIXTURE TO GLYCOLICALLY OXIDIZE AT LEAST 60% OF THE DOUBLE BONDS ORIGINALLY AVAILABLE IN THE LECITHIN.
Claim 2
Dependent Claim
102 words
PROCESS FOR PREPARING A COMPOSITION INCLUDING A STABLE WATER-DISPERSIBLE LECITHIN DERIVATIVE COMPRISING THE STEPS OF SELECTING A LECITHIN HAVING AT LEAST ONE UNSATURATED FATTY ACID ESTER AND HAVING A HYDROXYL GROUP ATTACHED TO THE NITROGEN ATOM AND SUBJECTING THE LECITHIN TO GLYCOLIC OXIDATION BY MIXING THE LECITHIN WITH AN OXIDANT SELECTED FROM THE GROUP CONSISTING OF SODIUM PERBORATE, BARIUM CHLORATE, ALKALING PERMANGANATE, SODIULM CARBONATE PEROXIDE, SODIUM PHOSPHATE PEROXIDE, AND HYDROGEN PEROXIDE IN WATER WITH A SUFFICIENT AMOUNT OF THE OXIDANT AND A SUFFICIENT ALKALINITY IN THE MIXTURE TO GLYCOLICALLY OXIDIZE AT LEAST 60% OF THE DOUBLE BONDS ORIGINALLY AVAILABLE IN THE LECITHIN.
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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) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |