US3775321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil composition
Assignee: Atlantic Richfield Co
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Filing: 1971-07-09
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Granted: 1973-11-27
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Expires: 1991-07-09
Abstract
Abstract LUBRICATING COMPOSITIONS COMPRISING OIL OF LUBRICATING VISCOSITY, ALKALI AND ALKALINE EARTH METAL PHENATES CHLORINATED HYDROCARBONACEOUS COMPONENTS, SULFUR-CONTAINING COMPOUNDS, NAPHTHYL AMINES AND DIAMINE COMPONENTS ARE DISCLOSED. THESE LUBRICATING COMPOSITIONS WHEN MAINTAINED ON INTERNAL COMBUSTION ENGINE COMPONENTS REQUIRING LUBRICATION, EXHIBIT IMPROVED RESISTANCE TO WEAR CAUSED TO BOTH SILVER AND BRONZE ENGINE COMPONENTS. THE COMPOSITIONS OF THE PRESENT INVENTION ALSO HAVE OUTSTANDING RESISTANCE TO DETERIORATION BY OXIDATION.
Inventors
- 👤 B Turnquest
- 👤 T Chao
- 👤 V Broman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:04
CPC Classifications
C; C10; C10M; C10M141/00; C10M141/08; C10M2203/00; C10M2203/10; C10M2203/102; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/124; C10M2207/129; C10M2207/22; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/086; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/086; C10M2219/087; C10M2219/089; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2040/00; C10N2040/135; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |