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Patent US2665254A successfully refreshed from Google Patents.
US2665254A
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US
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Oxidation inhibited mineral oil
Assignee: Sunoco Inc
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Filing: 1950-06-23
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Granted: 1954-01-05
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Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Walter J Coppock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:12
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/04; C10M2207/042; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2215/00; C10M2215/20; C10M2215/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A LUBRICATING COMPOSITION COMPRISING: A MAJOR PROPORTION OF MINERAL LUBRICATING OIL SUITABLE FOR USE UNDER SEVERE TEMPERATURE CONDITIONS; AND A MINOR PROPORTION CONSTITUTING AN OXIDATION INHIBITING QUANTITY OF A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
33 words
A LUBRICATING COMPOSITION COMPRISING: A MAJOR PROPORTION OF MINERAL LUBRICATING OIL SUITABLE FOR USE UNDER SEVERE TEMPERATURE CONDITIONS; AND A MINOR PROPORTION CONSTITUTING AN OXIDATION INHIBITING QUANTITY OF A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2067960A
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US2263664A
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US2166604A
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US2221818A
Cited
US2362516A
Cited
US2438468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |