US2883339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions
Assignee: Standard Oil Co
•
Filing: 1955-10-18
•
Granted: 1959-04-21
•
Expires: 1975-10-18
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:40
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/025; C10M2207/026; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/084; C10M2209/10; C10M2209/103; C10M2219/00; C10M2219/02; C10M2219/022; C10M2223/00; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/04; C10M2225/041; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL BASE, BETWEEN ABOUT 0.002 AND 10% OF AN ALKALINE EARTH-CONTAINING NEUTRALIZED REACTION PRODUCT OF A PHOSPHOURS SULFIDE AND AN OLEFIN POLYMER, BETWEEN ABOUT 0.001 AND 5% OF THE POLYMERIZATION PRODUCTS OF UNSATURATED FATTY ACIDS HAVING FROM 16 TO 26 CARBON ATOMS, SAID POLYMERIZATION PRODUCTS HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 400 AND 2000, AND BETWEEN ABOUT 0.001 AND 5% OF AN OIL SOLUBLE PHENOL SELECTED FROM THE GROUP CONSISTING OF ALKYLATED MONOHYDRIC PHENOLS AND ALKYLATED DIHYDRIC PHENOLS.
Claim 2
Dependent Claim
90 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL BASE, BETWEEN ABOUT 0.002 AND 10% OF AN ALKALINE EARTH-CONTAINING NEUTRALIZED REACTION PRODUCT OF A PHOSPHOURS SULFIDE AND AN OLEFIN POLYMER, BETWEEN ABOUT 0.001 AND 5% OF THE POLYMERIZATION PRODUCTS OF UNSATURATED FATTY ACIDS HAVING FROM 16 TO 26 CARBON ATOMS, SAID POLYMERIZATION PRODUCTS HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 400 AND 2000, AND BETWEEN ABOUT 0.001 AND 5% OF AN OIL SOLUBLE PHENOL SELECTED FROM THE GROUP CONSISTING OF ALKYLATED MONOHYDRIC PHENOLS AND ALKYLATED DIHYDRIC PHENOLS.
References Cited (Backward Citations)
US2734032A
Cited
US2202877A
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US2316090A
Cited
US2461961A
Cited
US2631979A
Cited
US2833713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |