Patent US3309318A successfully refreshed from Google Patents.
US3309318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of ester lubricants
Assignee: Emery Oleochemicals LLC
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Filing: 1965-04-30
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Granted: 1967-03-14
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Robert D Aylesworth
- 👤 Raymond H Boehringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:59
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/026; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/14; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A LUBRICANT BASE FLUID COMPRISING A BLEND OF FULLY ESTERIFIED POLYOL ESTERS HAVING AS ESSENTIAL CONSTITUENTS FROM 30 TO 60% OF A NEOPENTYL GLYCOL ESTER OF AT LEAST ONE MONOCARBOXYLIC ALKANOIC ACID HAVING FROM 7 TO 10 CARBON ATOMS AND FROM ABOUT 40-70% OF AT LEAST ONE OTHER ESTER OF A FULLY HINDERED POLYOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRIOL ESTERS FORMED FROM MONOCARBOXYLIC ALKANOIC ACIDS HAVING FROM 5 TO 10 CARBON ATOMS, TRIMETHYLOL PROPANE, TRIMETHTYLOL ETHANE, AND TRIMETHYLOL BUTANE ESTERS FORMED FROM MONOCARBOXYLIC NORMAL ALKANOIC ACIDS HAVING 5 TO 10 CARBON ATOMS, SAID PERCENTAGES BEING BY WEIGHT OF THE TOTAL QUANTITY OF FULLY HINDERED POLYOL ESTER.
Claim 2
Dependent Claim
108 words
A LUBRICANT BASE FLUID COMPRISING A BLEND OF FULLY ESTERIFIED POLYOL ESTERS HAVING AS ESSENTIAL CONSTITUENTS FROM 30 TO 60% OF A NEOPENTYL GLYCOL ESTER OF AT LEAST ONE MONOCARBOXYLIC ALKANOIC ACID HAVING FROM 7 TO 10 CARBON ATOMS AND FROM ABOUT 40-70% OF AT LEAST ONE OTHER ESTER OF A FULLY HINDERED POLYOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRIOL ESTERS FORMED FROM MONOCARBOXYLIC ALKANOIC ACIDS HAVING FROM 5 TO 10 CARBON ATOMS, TRIMETHYLOL PROPANE, TRIMETHTYLOL ETHANE, AND TRIMETHYLOL BUTANE ESTERS FORMED FROM MONOCARBOXYLIC NORMAL ALKANOIC ACIDS HAVING 5 TO 10 CARBON ATOMS, SAID PERCENTAGES BEING BY WEIGHT OF THE TOTAL QUANTITY OF FULLY HINDERED POLYOL ESTER.
References Cited (Backward Citations)
US2820014A
Cited
US3048608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |