US2684334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil containing a reaction product of p2s5-terpene and 2.4.6-trialkylphenol
Assignee: Shell Development Co
•
Filing: 1951-05-25
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Granted: 1954-07-20
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Expires: 1971-05-25
Abstract
No abstract record available.
Inventors
- 👤 Julian G Ryan
- 👤 George L Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:30
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/04; C10M2207/044; C10M2207/10; C10M2207/24; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/10; C10M2209/103; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/10; C10M2215/102; C10M2215/16; C10M2215/18; C10M2215/20; C10M2215/202; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/064; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/086; C10M2219/087; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2223/06; C10M2223/061; C10M2223/063; C10M2223/08; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/04; C10M2225/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2030/00; C10N2030/08; C10N2030/12; C10N2040/00; C10N2040/12; C10N2040/13; C10N2040/135; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; 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
51 words
A NON-ASH CONTAINING LUBRICATING OIL COMPOSITION FOR AVIATION ENGINES CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL HAVING INCORPORATED THEREIN FROM ABOUT 0.1 TO 5% EACH OF A REACTION PRODUCT OF P2S5-TERPENE AND OF 2,4,6TRIALKYLPHENOL, AT LEAST ONE OF THE ALKYL RADICALS ORTHO TO THE HYDROXY GROUP BEING A TERTIARY ALKYL RADICAL.
Claim 2
Dependent Claim
51 words
A NON-ASH CONTAINING LUBRICATING OIL COMPOSITION FOR AVIATION ENGINES CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL HAVING INCORPORATED THEREIN FROM ABOUT 0.1 TO 5% EACH OF A REACTION PRODUCT OF P2S5-TERPENE AND OF 2,4,6TRIALKYLPHENOL, AT LEAST ONE OF THE ALKYL RADICALS ORTHO TO THE HYDROXY GROUP BEING A TERTIARY ALKYL RADICAL.
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) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |