Patent US3115463A successfully refreshed from Google Patents.
US3115463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized lubricants
Assignee: Ethyl Corp
•
Filing: 1963-03-18
•
Granted: 1963-12-24
•
Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Harold D Orloff
- 👤 Gordon G Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:49
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/144; C10M2207/146; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/086; C10M2219/087; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/10; C10M2223/12; C10M2225/00; C10M2225/04; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2040/00; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A LUBRICATING OIL SELECTED FROM THE GROUP CONSISTING OF PETROLEUM HYDROCARBON OILS AND SYTHETIC DIESTER OILS NORMALLY SUSCEPTIBLE TO OXIDATIVE DETERIORATION CONTAINING A SMALL ANTIOXIDANT QUANTITY OF A SYNERGISTIC MIXTURE CONSISTING OF FROM ABOUT 0.001 TO ABOUT 0.2 PERCENT BY WEIGHT BASED ON THE OIL OF PHOSPHORUS AS A DIALKYL HYDROGEN PHOSPHITE IN WHICH THE ALKYL GROUPS EACH CONTAIN UP TO ABOUT 12 CARBON ATOMS AND FROM ABOUT 0.01 TO ABOUT 3 PERCENT BY WEIGHT BASED ON THE OIL OF A SUBSTITUTED PHENOLIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF MONONUCLEAR PHENOLS OF THE FORMULA
Claim 2
Dependent Claim
95 words
A LUBRICATING OIL SELECTED FROM THE GROUP CONSISTING OF PETROLEUM HYDROCARBON OILS AND SYTHETIC DIESTER OILS NORMALLY SUSCEPTIBLE TO OXIDATIVE DETERIORATION CONTAINING A SMALL ANTIOXIDANT QUANTITY OF A SYNERGISTIC MIXTURE CONSISTING OF FROM ABOUT 0.001 TO ABOUT 0.2 PERCENT BY WEIGHT BASED ON THE OIL OF PHOSPHORUS AS A DIALKYL HYDROGEN PHOSPHITE IN WHICH THE ALKYL GROUPS EACH CONTAIN UP TO ABOUT 12 CARBON ATOMS AND FROM ABOUT 0.01 TO ABOUT 3 PERCENT BY WEIGHT BASED ON THE OIL OF A SUBSTITUTED PHENOLIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF MONONUCLEAR PHENOLS OF THE FORMULA
References Cited (Backward Citations)
US2220851A
Cited
US2101632A
Cited
US2202877A
Cited
US2169185A
Cited
US2413353A
Cited
US2515907A
Cited
US2726226A
Cited
US2831898A
Cited
US2807653A
Cited
US2734088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |