Patent US2717241A successfully refreshed from Google Patents.
US2717241A
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Tall oil pitch-phosphorus sulfide reaction product and metallic salts as dispersants for lubricating oils
Assignee: Wyeth Holdings LLC
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Filing: 1953-02-09
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Granted: 1955-09-06
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Expires: 1973-02-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Hook
- 👤 Lindley C Beegle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:15
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/04; C10; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/12; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
A LUBRICATING COMPOSITION COMPRISING A HYDROCARBON LUBRICATING OIL HAVING DISSOLVING THEREIN A DETERGENT COMPOSITION OPERATIVE TO ASSIST IN PREVENTING THE DEPOSITION OF HARD DEPOSITS DUE TO SLUDGE FORMATION IN THE OIL, SAID DETERGENT COMPOSITION COMPRISING AS ITS ESSENTIAL INGREDIENT AT NEUTRALIZED REACTION PRODUCT RESULTING FROM CHEMICALLY REACTING A PHOSPHORUS SULFIDE WITH A MIXTURE COMPRISING FROM ABOUT 1% TO 75% BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF TALL OIL PITCH, PARTIALLY SAPONIFIED TALL OIL PITCH, AND COMPLETELY SAPONIFIED TALL OIL PITCH AND AT LEAST 25% BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF AN UNSTURATED ESTER WAX, A PARTIALLY SAPONIFIED UNSATURATED ESTER WAX AND A COMPLETELY SAPONIFIED UNSATURATED ESTER WAX, AND NEUTRALIZING THE REACTION PRODUCT WITH A SUITABLE REACTIVE METAL COMPOUND.
References Cited (Backward Citations)
US2417283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |