Patent US2767144A successfully refreshed from Google Patents.
US2767144A
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Partial fatty acid esters of alkitol anhydrides and a dimeric acid, as corrosion inhibitors
Assignee: Gulf Oil Corp
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Filing: 1953-12-28
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Granted: 1956-10-16
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Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph I Gottshall
- 👤 Jr Raymond T Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:12
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/19; C10L1/191; C08; C08F; C08F20/00; C08F20/62; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/287; C10M2207/289; C10N; C10N2030/00; C10N2030/12; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A ACID ESTER OF (1) A DIMERIC ACID DERIVED FROM AN UNSATURATED FATTY ACID CONTAINING FROM 6 TO 22 CARBON ATOMS AND HAVING FROM 2 TO 3 ETHYLENIC LINKAGES PER MOLECULE AND (2) A PARTIAL ESTER OF A FATTY ACID CONTAINING FROM 12 TO 24 CARBON ATOMS AND AN ALKITOL ANHYDRIDE CONTAINING 4 TO 6 CARBON ATOMS, SAID ACID ESTER CONTAINING AT LEAST 1 UNREACTED CARBOXYL GROUP PER MOLECULE.
Claim 2
Dependent Claim
69 words
A ACID ESTER OF (1) A DIMERIC ACID DERIVED FROM AN UNSATURATED FATTY ACID CONTAINING FROM 6 TO 22 CARBON ATOMS AND HAVING FROM 2 TO 3 ETHYLENIC LINKAGES PER MOLECULE AND (2) A PARTIAL ESTER OF A FATTY ACID CONTAINING FROM 12 TO 24 CARBON ATOMS AND AN ALKITOL ANHYDRIDE CONTAINING 4 TO 6 CARBON ATOMS, SAID ACID ESTER CONTAINING AT LEAST 1 UNREACTED CARBOXYL GROUP PER MOLECULE.
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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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |