Patent US3112268A successfully refreshed from Google Patents.
US3112268A
Expired / Lapsed
US
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Lubricating oil composition
Assignee: Shell USA Inc
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Filing: 1960-02-15
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Granted: 1963-11-26
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Expires: 1980-02-15
Abstract
No abstract record available.
Inventors
- 👤 George M Calhoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:40
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07C; C07C323/00; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808; C10M2203/00; C10M2203/06; C10M2203/10; C10M2203/102; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2205/18; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/024; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/107; C10M2209/108; C10M2219/00; C10M2219/04; C10M2219/08; C10M2219/082; C10M2219/085; C10M2221/00; C10M2221/04; C10M2221/043; C10M2223/00; C10M2223/06; C10M2223/061; C10M2223/063; C10M2223/065; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/12; C10N2040/13; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A LUBRICATING OIL CONTAINING FROM ABOUT 0.05% TO ABOUT 10% EACH OF (1) AN OIL-SOLUBLE DICARBOXY C1-4 ALKYL MERCAPTO SUBSTITUTED DIESTER OF AN UNSATURATED FATTY ACID HAVING AT LEAST 18 CARBON ATOMS AND AN ALKYLENE GLYCOL AND A DOIL SELECTED FROM THE GROUP CONSISTING OF POLYOXYALKYLENE DIOL AND ITS SULFUR ANALOGUE THE ALKYLENE PORTION CONTAINING 2 TO 4 CARBON ATOMS AND (2) AN OILSOLUBLE ALKYLMERCAPTOMETHYLPHOSPHONO COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
70 words
A LUBRICATING OIL CONTAINING FROM ABOUT 0.05% TO ABOUT 10% EACH OF (1) AN OIL-SOLUBLE DICARBOXY C1-4 ALKYL MERCAPTO SUBSTITUTED DIESTER OF AN UNSATURATED FATTY ACID HAVING AT LEAST 18 CARBON ATOMS AND AN ALKYLENE GLYCOL AND A DOIL SELECTED FROM THE GROUP CONSISTING OF POLYOXYALKYLENE DIOL AND ITS SULFUR ANALOGUE THE ALKYLENE PORTION CONTAINING 2 TO 4 CARBON ATOMS AND (2) AN OILSOLUBLE ALKYLMERCAPTOMETHYLPHOSPHONO COMPOUND HAVING THE GENERAL FORMULA
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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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |