Patent US2595140A successfully refreshed from Google Patents.
US2595140A
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Oxidation resistant lubricating oil composition
Assignee: Standard Oil Development Co
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Filing: 1950-12-01
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Granted: 1952-04-29
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Expires: 1970-12-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:52
CPC Classifications
C; C10; C10M; C10M3/00; C10M2205/00; C10M2205/02; C10M2205/028; C10M2207/00; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/109; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2020/00; C10N2020/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
AN OXIDATION RESITANT LUBRICATING OIL COMPOSITION WHICH COMPRISES A POLYMER BOILING IN THE LUBRICATING OIL BOILING RANGE OF AN ALPHA OLEFIN HAVING FROM 5 TO 10 CARBON ATOMS IN THE MOLECULE, SAID POLYMER HAVING LUBRICATING OIL PROPERTIES AND BEING SUSCEPTIBLE TO OXIDATION AND NOT LESS THAN 0.1% BY WEIGHT OF CARBAZOLE.
Claim 2
Dependent Claim
51 words
AN OXIDATION RESITANT LUBRICATING OIL COMPOSITION WHICH COMPRISES A POLYMER BOILING IN THE LUBRICATING OIL BOILING RANGE OF AN ALPHA OLEFIN HAVING FROM 5 TO 10 CARBON ATOMS IN THE MOLECULE, SAID POLYMER HAVING LUBRICATING OIL PROPERTIES AND BEING SUSCEPTIBLE TO OXIDATION AND NOT LESS THAN 0.1% BY WEIGHT OF CARBAZOLE.
References Cited (Backward Citations)
US2037932A
Cited
US2370552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |