US3093585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ester base lubricant compositions
Assignee: Shell USA Inc
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Filing: 1960-06-06
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Granted: 1963-06-11
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Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Low Hans
- 👤 William W Reynolds
- 👤 Donald W Schmulling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:48
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07F; C07F1/00; C07F1/005; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2227/00; C10M2227/09; C10N; C10N2010/00; C10N2010/02; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/08; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A SYNTHETIC ESTER BASE LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF AN ALIPHATIC ESTER OF AN ALIPHATIC CARBOXYLIC ACID AND MINOR OXIDATION-INHIBITING AMOUNTS EACH OF A COPPER C2-24 FATTY ACID SALT COMPLEX OF AN AMINE OF THE GROUP CONSISTING OF PYRIDYLAMINES, AMINOTRIAZINES AND MIXTURES THEREOF AND A FREE AMINE OF THE SAME GROUP, THE MOL RATIO OF TOTAL AMINE TO COPPER BEING BETWEEN ABOUT 2 AND ABOUT 75.
Claim 2
Dependent Claim
68 words
A SYNTHETIC ESTER BASE LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF AN ALIPHATIC ESTER OF AN ALIPHATIC CARBOXYLIC ACID AND MINOR OXIDATION-INHIBITING AMOUNTS EACH OF A COPPER C2-24 FATTY ACID SALT COMPLEX OF AN AMINE OF THE GROUP CONSISTING OF PYRIDYLAMINES, AMINOTRIAZINES AND MIXTURES THEREOF AND A FREE AMINE OF THE SAME GROUP, THE MOL RATIO OF TOTAL AMINE TO COPPER BEING BETWEEN ABOUT 2 AND ABOUT 75.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |