Patent US2566241A successfully refreshed from Google Patents.
US2566241A
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Reaction product of phosphorus sulfide-polyolefin-oxygen containing organic compound and mineral oil compositions containing same
Assignee: Standard Oil Co
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Filing: 1948-05-27
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Granted: 1951-08-28
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Expires: 1968-05-27
Abstract
No abstract record available.
Inventors
- 👤 John M Musselman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:59
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/123; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/28; C10M2207/32; C10M2223/00; C10M2223/10; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AS AN OIL DISPERSIBLE COMPOSITION FOR INHIBITING DETERIORATION OF ORGANIC COMPOUNDS, A SIMULTANEOUS REACTION PORDUCT OF 5 TO 60% BY WEIGHT OF A PHOSPHORUS SULFIDE AND 95 TO 40% OF A MIXTURE OF ONE PART BY WEIGHT OF AN OXYGENCONTAINING ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE COMPOUNDS CONTAINING HYDROXY, CARBONYL, ETHER AND CARBOXY RADICALS, AND HAVING A BOILING POINT OF AT LEAST 225* F. WITH 1 TO 10 PARTS OF A POLY-OLEFIN CAPABLE OF IMPROVING THE VISCOSITY INDEX CHARACTERISTIC OF A LUBRICATING OIL, REACTED TOGETHER AT A TEMPERATURE IN THE RANGE OF 225* TO 500* F.
Claim 2
Dependent Claim
99 words
AS AN OIL DISPERSIBLE COMPOSITION FOR INHIBITING DETERIORATION OF ORGANIC COMPOUNDS, A SIMULTANEOUS REACTION PORDUCT OF 5 TO 60% BY WEIGHT OF A PHOSPHORUS SULFIDE AND 95 TO 40% OF A MIXTURE OF ONE PART BY WEIGHT OF AN OXYGENCONTAINING ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE COMPOUNDS CONTAINING HYDROXY, CARBONYL, ETHER AND CARBOXY RADICALS, AND HAVING A BOILING POINT OF AT LEAST 225* F. WITH 1 TO 10 PARTS OF A POLY-OLEFIN CAPABLE OF IMPROVING THE VISCOSITY INDEX CHARACTERISTIC OF A LUBRICATING OIL, REACTED TOGETHER AT A TEMPERATURE IN THE RANGE OF 225* TO 500* F.
References Cited (Backward Citations)
US2331923A
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US2316090A
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US2386222A
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US2405608A
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US2494592A
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US2480296A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |