Patent US2643979A successfully refreshed from Google Patents.
US2643979A
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Demulsifiable lubricant compositions
Assignee: Standard Oil Co
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Filing: 1950-11-21
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Granted: 1953-06-30
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Expires: 1970-11-21
Abstract
No abstract record available.
Inventors
- 👤 Albert W Lindert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:21
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/108; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2211/00; C10M2211/02; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/09; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2010/00; C10N2010/08; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2060/00; C10N2060/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A LUBRICANT COMPOSITION COMPRISING ESSENTIALLY A MAJOR PROPORTION OF A HYDROCARBON OIL OF FROM ABOUT 0.5% TO ABOUT 15% OF AN ORGANIC EXTREME PRESSURE AGENT CONTAINING AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF CHLORINE, SULFUR, PHOSPHORUS, AND MIXTURES THEREOF AND NORMALLY SUSCEPTIBLE TO THE FORMATION OF OIL-INWATER EMULSIONS IN THE PRESENCE OF WATER, FROM 0% TO ABOUT 10% OF AN ASPHALT, AND FROM ABOUT 0.005% TO ABOUT 1% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A QUATERNARY COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
85 words
A LUBRICANT COMPOSITION COMPRISING ESSENTIALLY A MAJOR PROPORTION OF A HYDROCARBON OIL OF FROM ABOUT 0.5% TO ABOUT 15% OF AN ORGANIC EXTREME PRESSURE AGENT CONTAINING AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF CHLORINE, SULFUR, PHOSPHORUS, AND MIXTURES THEREOF AND NORMALLY SUSCEPTIBLE TO THE FORMATION OF OIL-INWATER EMULSIONS IN THE PRESENCE OF WATER, FROM 0% TO ABOUT 10% OF AN ASPHALT, AND FROM ABOUT 0.005% TO ABOUT 1% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A QUATERNARY COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2050924A
Cited
US2228325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |