US3121691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant composition
Assignee: Sinclair Research Inc
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Filing: 1960-05-24
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Granted: 1964-02-18
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Expires: 1980-05-24
Abstract
No abstract record available.
Inventors
- 👤 Daniel B Eickemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:48
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/102; C10M2209/103; C10M2209/104; C10M2209/11; C10M2209/111; C10M2209/112; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2227/00; C10M2227/06; C10M2227/065; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2020/00; C10N2020/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF SYNTHETIC ESTER OF LUBRICATING VISCOSITY AND MINOR AMOUNTS EFFECTIVE TO RETARD OXIDATION, OF NPHENYL-1-NAPHTHYLAMINE AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF DIPYRIDYLAMINE, AMINOQUINOLINE AND AMINOPYRIDINE, SAID ESTER-BASED FLUID BEING OF AN ALKANOL OF 4 TO 12 CARBON ATOMS, SAID MINOR AMOUNTS BEING ABOUT 0.01 TO 5 PERCENT BY WEIGHT, AND AN ALKANE CARBOXYLIC ACID OF 4 TO 12 CARBON ATOMS.
Claim 2
Dependent Claim
72 words
A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF SYNTHETIC ESTER OF LUBRICATING VISCOSITY AND MINOR AMOUNTS EFFECTIVE TO RETARD OXIDATION, OF NPHENYL-1-NAPHTHYLAMINE AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF DIPYRIDYLAMINE, AMINOQUINOLINE AND AMINOPYRIDINE, SAID ESTER-BASED FLUID BEING OF AN ALKANOL OF 4 TO 12 CARBON ATOMS, SAID MINOR AMOUNTS BEING ABOUT 0.01 TO 5 PERCENT BY WEIGHT, AND AN ALKANE CARBOXYLIC ACID OF 4 TO 12 CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |