US3660290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions
Assignee: Shell USA Inc
•
Filing: 1969-09-22
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Granted: 1972-05-02
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Expires: 1989-09-22
Abstract
Abstract 4-ALKYLPHENYL-ALKYL-2-NAPHTHYLAMINES AND MIXTURES OF 4-ALKYLPHENYL-1-ALKYL-2-MAPHTHYLAMINES WITH 4-ALKYLPHENYL-2-NAPHTHYLAMINES ARE EFFECTIVE IN IMPROVING THE OXIDATION RESISTANCE, CLEANLINESS AND BEARING PERFORMANCE PROPERTIES OF LUBRICANT COMPOSITIONS.
Inventors
- 👤 Roland T Schlobohm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:32
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/12; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/284; C10M2207/285; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/086; C10M2215/14; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/047; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |