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Patent US3018248A successfully refreshed from Google Patents.
US3018248A
Expired / Lapsed
US
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Oxidation inhibited mineral oil compositions
Assignee: California Research LLC
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Filing: 1960-01-20
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Granted: 1962-01-23
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Expires: 1980-01-20
Abstract
No abstract record available.
Inventors
- 👤 Edward G Foehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:04
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2205/16; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/16; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/102; C10M2209/103; C10M2209/105; C10M2209/108; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/06; C10M2223/065; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2010/00; C10N2010/02; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2050/00; C10N2050/10; C10N2060/00; C10N2060/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY, FROM 0.02% TO 10%, BY WEIGHT, OF A TERTIARY BUTYL PHENOL SELECTED FROM THE GROUP CONSISTING OF 2,6-DI-T-BUTYL-P-CRESOL AND 2,6-DI-T-BUTYL PHENOL, AND AN OIL-SOLUBLE COBALT NAPHTHENATE IN AMOUNT SUCH THAT THE COBALT IS PRESENT IN SAID LUBRICATING OIL COMPOSITION IN AMOUNT FROM 1 TO 200 P.P.M.
Claim 2
Dependent Claim
57 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY FROM 0.1% TO 1%, BY WEIGHT, OF A TERTIARY BUTYL PHENOL SELECTED FROM THE GROUP CONSISTING OF 2,6-DI-T-BUTYL-P-CRESOL AND 2,6-DIT-BUTYL PHENOL, AND COBALT NAPHTHENATE IN AMOUNT SUCH THAT THE COBALT IS PRESENT IN SAID OIL COMPOSITION IN AMOUNT FROM 1 TO 200 P.P.M.
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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |