US2527889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diesel engine fuel
Assignee: Union Oil Company of California
•
Filing: 1946-08-19
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Granted: 1950-10-31
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Expires: 1966-08-19
Abstract
No abstract record available.
Inventors
- 👤 Charles C Moore
- 👤 Estates Palos Verdes
- 👤 Paul W Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:36
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/18; C10L1/188; C10L1/1881; C10L1/1886; C10L1/19; C10L1/191; C10L1/192; C10L1/198; C10L1/1985; C10L1/20; C10L1/205; C10L1/24; C10L1/2493; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/28; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/02; C10M2219/024; C10M2223/00; C10M2223/10; C10N; C10N2010/00; C10N2010/08; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A DIESEL ENGINE FUEL HAVING ANTI-CORROSION CHARACTERISTICS CAPABLE OF PREVENTING CORROSION OF METAL PARTS IN THE FUEL SYSTEM OF SAID DIESEL ENGINE CAUSED BY CONTAMINATION OF SAID FUEL WITH SALINE WATER, CONSISTING ESSENTIALLY OF DIESEL ENGINE FUEL CONTAINING BETWEEN ABOUT 0.02% AND ABOUT 3.0% BY WEIGHT OF AN ANTI-CORROSION ADDITIVE, SAID ADDITIVE CONTAINING BETWEEN ABOUT 80% AND ABOUT 99% BY WEIGHT OF A FATTY ACID ESTER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND CLYCOLS, THE ESTER CONTAINING AT LEAST ONE UNESTERIFIED HYDROXY GROUP, AND BETWEEN ABOUT 1.0% AND ABOUT 20% BY WEIGHT OF A FATTY ACID; THE ACID RESIDUE OF SAID FATTY ACID ESTER AND OF SAID FATTY ACID EACH HAVING AT LEAST ABOUT 10 CARBON ATOMS PER MOLECULE, SAID COMPOSITION BEING SUBSTANTIALY FREE FROM METAL SOAP.
Claim 2
Dependent Claim
132 words
A DIESEL ENGINE FUEL HAVING ANTI-CORROSION CHARACTERISTICS CAPABLE OF PREVENTING CORROSION OF METAL PARTS IN THE FUEL SYSTEM OF SAID DIESEL ENGINE CAUSED BY CONTAMINATION OF SAID FUEL WITH SALINE WATER, CONSISTING ESSENTIALLY OF DIESEL ENGINE FUEL CONTAINING BETWEEN ABOUT 0.02% AND ABOUT 3.0% BY WEIGHT OF AN ANTI-CORROSION ADDITIVE, SAID ADDITIVE CONTAINING BETWEEN ABOUT 80% AND ABOUT 99% BY WEIGHT OF A FATTY ACID ESTER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND CLYCOLS, THE ESTER CONTAINING AT LEAST ONE UNESTERIFIED HYDROXY GROUP, AND BETWEEN ABOUT 1.0% AND ABOUT 20% BY WEIGHT OF A FATTY ACID; THE ACID RESIDUE OF SAID FATTY ACID ESTER AND OF SAID FATTY ACID EACH HAVING AT LEAST ABOUT 10 CARBON ATOMS PER MOLECULE, SAID COMPOSITION BEING SUBSTANTIALY FREE FROM METAL SOAP.
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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) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |