Patent US2744870A successfully refreshed from Google Patents.
US2744870A
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US
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Lubricating compositions
Assignee: Shell Development Co
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Filing: 1954-11-15
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Granted: 1956-05-08
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Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Stillebroer Cornelis
- 👤 Minne Johan Leonard Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:25
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/083; C10M2201/084; C10M2201/086; C10M2203/00; C10M2203/10; C10M2203/108; C10M2205/00; C10M2205/18; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/124; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/142; C10M2207/144; C10M2207/146; C10M2207/16; C10M2207/20; C10M2207/22; C10M2207/26; C10M2207/262; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/289; C10M2207/30; C10M2207/302; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/10; C10M2209/101; C10M2209/103; C10M2209/104; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/10; C10M2215/102; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/10; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A LUBRICATING COMPOSITION FOR LUBRICATION OF INTERNAL COMBUSTION ENGINES OPERATING WITH HIGH SULFUR HYDROCARBON FUELS, SAID LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION CONSISTING ESSENTIALLY OF FROM 5% TO 40% BY WEIGHT OF WATER AND FROM 60% TO 95% OF A MINERAL LUBRICATING OIL, SAID PHASE OF THE EMULSION CONTAINING IN SOLUTION AT LEAST 0.25 GRAM MOLS PER LITER OF A WATER-SOLUBLE SALT OF A DIVALENT METAL.
Claim 2
Dependent Claim
68 words
A LUBRICATING COMPOSITION FOR LUBRICATION OF INTERNAL COMBUSTION ENGINES OPERATING WITH HIGH SULFUR HYDROCARBON FUELS, SAID LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION CONSISTING ESSENTIALLY OF FROM 5% TO 40% BY WEIGHT OF WATER AND FROM 60% TO 95% OF A MINERAL LUBRICATING OIL, SAID PHASE OF THE EMULSION CONTAINING IN SOLUTION AT LEAST 0.25 GRAM MOLS PER LITER OF A WATER-SOLUBLE SALT OF A DIVALENT METAL.
References Cited (Backward Citations)
US2231168A
Cited
US2322822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |