Patent US2893990A successfully refreshed from Google Patents.
US2893990A
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US
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Process for producing sugar esters
Assignee: Sugar Res Foundation Inc
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Filing: 1955-12-12
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Granted: 1959-07-07
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Expires: 1975-12-12
Abstract
No abstract record available.
Inventors
- 👤 Henry B Hass
- 👤 Foster D Snell
- 👤 William C York
- 👤 Lloyd I Osipow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04; C07H13/06; B; B23; B23K; B23K5/00; B23K5/02; B23K5/06; C11; C11C; C11C3/00; C11C3/04; C11D; C11D1/00; C11D1/66; C11D1/662; C11D3/00; C11D3/02; C11D3/04; C11D3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR PRODUCING AN ESTER OF A FATTY ACID CONTAINING BETWEEN ABOUT 6 AND 30 CARBON ATOMS AND A SACCHARIDE SELECTED FROM THE GROUP CONSISTING OF SUCROSE AND RAFFINOSE, WHICH COMPRISES TREATING A MEMBER OF THE GROUP CONSISTING OF SUCROSE AND RAFFINOSE WITH AN ESTER OF A FATTY ACID CONTAINING BETWEEN ABOUT 6 AND 30 CARBON ATOMS AND A NON-SACCHARIDE ALCOHOL, IN THE PRESENCE OF AN ALKALINE CATALYST, AT A TEMPERATURE IN THE RANGE FROM BETWEEN ABOUT 20 AND 180*C., AND IN THE PRESENCE OF A SOLVENT.
Claim 2
Dependent Claim
88 words
A PROCESS FOR PRODUCING AN ESTER OF A FATTY ACID CONTAINING BETWEEN ABOUT 6 AND 30 CARBON ATOMS AND A SACCHARIDE SELECTED FROM THE GROUP CONSISTING OF SUCROSE AND RAFFINOSE, WHICH COMPRISES TREATING A MEMBER OF THE GROUP CONSISTING OF SUCROSE AND RAFFINOSE WITH AN ESTER OF A FATTY ACID CONTAINING BETWEEN ABOUT 6 AND 30 CARBON ATOMS AND A NON-SACCHARIDE ALCOHOL, IN THE PRESENCE OF AN ALKALINE CATALYST, AT A TEMPERATURE IN THE RANGE FROM BETWEEN ABOUT 20 AND 180*C., AND IN THE PRESENCE OF A SOLVENT.
References Cited (Backward Citations)
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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) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |