Patent US3000824A successfully refreshed from Google Patents.
US3000824A
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Lubricating oil composition
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-11-13
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Granted: 1961-09-19
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Expires: 1977-11-13
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Morway
- 👤 John J Kolfenbach
- 👤 Jr John O Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:20
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/124; C10M2207/125; C10M2207/129; C10M2207/24; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/289; C10M2207/32; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/11; C10M2209/111; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2225/00; C10M2225/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A LUBRICATING OIL COMPOSITION SUITABLE FOR USE IN THE CRANKCASE OF INTERNAL COMBUSTION ENGINES, COMPRISING A MAJOR PROPORTION OF MINERAL LUBRICATING OIL, ABOUT 2.5 TO 8.0 WEIGHT PERCENT OF A DEHYDRATED ALKALINE EARTH METAL MIXED SALT OF C2-C5 FATTY ACID AND A C7-C12 FATTY ACID IN A MOLAR RATIO OF ABOUT 2.5 TO 20 MOLES OF SAID C2-C5 FATTY ACID PER MOLE OF SAID C7-C12 FATTY ACID, ABOUT 1 TO 5 WEIGHT PERCENT OF A C16 TO C36 TERTIARY ALKYL PRIMARY AMINE, AND ABOUT 0.5 TO 5 WT. PERCENT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKOXYPOLYALKYLENEOXY MONO- AND DIESTERS OF PHOSPHORIC ACID AND MIXTURES THEREOF, WHEREIN SAID ALKOXY GROUP CONTAINS 2 TO 10 CARBON ATOMS, SAID ALKYLENEOXY GROUP CONTAINS 2 TO 4 CARBON ATOMS AND THE NUMBER OF ALKYLENEOXY GROUPS PER ESTER GROUP IS ABOUT 8 TO 18.
Claim 2
Dependent Claim
141 words
A LUBRICATING OIL COMPOSITION SUITABLE FOR USE IN THE CRANKCASE OF INTERNAL COMBUSTION ENGINES, COMPRISING A MAJOR PROPORTION OF MINERAL LUBRICATING OIL, ABOUT 2.5 TO 8.0 WEIGHT PERCENT OF A DEHYDRATED ALKALINE EARTH METAL MIXED SALT OF C2-C5 FATTY ACID AND A C7-C12 FATTY ACID IN A MOLAR RATIO OF ABOUT 2.5 TO 20 MOLES OF SAID C2-C5 FATTY ACID PER MOLE OF SAID C7-C12 FATTY ACID, ABOUT 1 TO 5 WEIGHT PERCENT OF A C16 TO C36 TERTIARY ALKYL PRIMARY AMINE, AND ABOUT 0.5 TO 5 WT. PERCENT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKOXYPOLYALKYLENEOXY MONO- AND DIESTERS OF PHOSPHORIC ACID AND MIXTURES THEREOF, WHEREIN SAID ALKOXY GROUP CONTAINS 2 TO 10 CARBON ATOMS, SAID ALKYLENEOXY GROUP CONTAINS 2 TO 4 CARBON ATOMS AND THE NUMBER OF ALKYLENEOXY GROUPS PER ESTER GROUP IS ABOUT 8 TO 18.
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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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |