US2636859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of matter
Assignee: Sinclair Refining Co
•
Filing: 1951-01-29
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Granted: 1953-04-28
•
Expires: 1971-01-29
Abstract
No abstract record available.
Inventors
- 👤 Entwistle George
- 👤 Voss Henry John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:53
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/064; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A GREASE COMPOSITION CONSISTING ESSENTIALLY OF A MINERAL OIL AND SOAP COMPOUND GREASE AND ABOUT 0.05 TO ABOUT 2 WEIGHT PERCENT OF AN OILSOLUBLE HIGHER ALKYLATED DIPHENYLAMINE AND ABOUT 0.05 TO 2 WEIGHT PERCENT OF A DIMETHYLAMINOMETHYL ALKYLPHENOL.
Claim 2
Dependent Claim
38 words
A GREASE COMPOSITION CONSISTING ESSENTIALLY OF A MINERAL OIL AND SOAP COMPOUND GREASE AND ABOUT 0.05 TO ABOUT 2 WEIGHT PERCENT OF AN OILSOLUBLE HIGHER ALKYLATED DIPHENYLAMINE AND ABOUT 0.05 TO 2 WEIGHT PERCENT OF A DIMETHYLAMINOMETHYL ALKYLPHENOL.
References Cited (Backward Citations)
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US2348638A
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US2453850A
Cited
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US2533989A
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US2515133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |