US2911367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral lubricating oil composition
Assignee: Gulf Oil Corp
•
Filing: 1957-07-01
•
Granted: 1959-11-03
•
Expires: 1977-07-01
Abstract
No abstract record available.
Inventors
- 👤 Richard E Baus
- 👤 Earl E Fisher
- 👤 Paul R Pendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:14
CPC Classifications
C; C10; C10M; C10M141/00; C10M141/10; C10M2207/00; C10M2207/04; C10M2207/046; C10M2207/28; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
AN IMPROVED LUBRICATING COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL AND MINOR PROPORTIONS CONSISTING OF ABOUT 1 TO ABOUT 5 PERCENT BY WEIGHT OF AN ALKALI METAL SALT OF AN OIL-SOLUBLE SULFONIC ACID; ABOUT 0.1 TO ABOUT 1.5 PERCENT BY WEIGHT OF A METAL ALKYL THIOPHOSPHATE, SAID METAL BEING A METAL OF GROUP II OF THE PERIODIC SYSTEM AND SAID ALKYL THIOPHOSPHATE CONTAINING AT LEAST ONE ALKYL GROUP CONTAINING BETWEEN 3 AND 12 CARBON ATOMS; ABOUT 0.1 TO ABOUT 5.0 PERCENT BY WEIGHT OF A PARTIAL ESTER OF A FATTY ACID CONTAINING BETWEEN 12 AND 24 CARBO N ATOMS A POLYOL CONTAINING FROM 3 TO 6 CARBON AND FROPM 3 TO 6 HYDROXYL RADICALS PER MOLECULE; AND ABOUT 1 TO ABOUT 3 PERCENT BY WEIGHT OF AN ETHYLENE GLYCOL C5 BRANCHED-CHAIN ALKYL ETHER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL ETHYLBUTYL ETHER, DIETHYLENE GLYCOL ETHYLBUTYL ETHER, ETHYLENE GLYCOL METHYLPENTYL ETHER AND DIETHYLENE GLYCOL METHYLPENTYL ETHER.
Claim 2
Dependent Claim
159 words
AN IMPROVED LUBRICATING COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL AND MINOR PROPORTIONS CONSISTING OF ABOUT 1 TO ABOUT 5 PERCENT BY WEIGHT OF AN ALKALI METAL SALT OF AN OIL-SOLUBLE SULFONIC ACID; ABOUT 0.1 TO ABOUT 1.5 PERCENT BY WEIGHT OF A METAL ALKYL THIOPHOSPHATE, SAID METAL BEING A METAL OF GROUP II OF THE PERIODIC SYSTEM AND SAID ALKYL THIOPHOSPHATE CONTAINING AT LEAST ONE ALKYL GROUP CONTAINING BETWEEN 3 AND 12 CARBON ATOMS; ABOUT 0.1 TO ABOUT 5.0 PERCENT BY WEIGHT OF A PARTIAL ESTER OF A FATTY ACID CONTAINING BETWEEN 12 AND 24 CARBO N ATOMS A POLYOL CONTAINING FROM 3 TO 6 CARBON AND FROPM 3 TO 6 HYDROXYL RADICALS PER MOLECULE; AND ABOUT 1 TO ABOUT 3 PERCENT BY WEIGHT OF AN ETHYLENE GLYCOL C5 BRANCHED-CHAIN ALKYL ETHER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL ETHYLBUTYL ETHER, DIETHYLENE GLYCOL ETHYLBUTYL ETHER, ETHYLENE GLYCOL METHYLPENTYL ETHER AND DIETHYLENE GLYCOL METHYLPENTYL ETHER.
References Cited (Backward Citations)
US2732345A
Cited
US2355591A
Cited
US2369632A
Cited
US2398193A
Cited
US2417876A
Cited
US2482517A
Cited
US2565403A
Cited
US2710842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |