US2826549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Naphthenates as soluble oil emulsifiers
Assignee: Pure Oil Co
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Filing: 1955-09-30
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Granted: 1958-03-11
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Expires: 1975-09-30
Abstract
No abstract record available.
Inventors
- 👤 Allan A Manteuffel
- 👤 George R Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:54
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/10; C10M2203/104; C10M2203/106; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/16; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN EMULSION-STABLE SOLUBLE OIL COMPOSED OF 87-95% BY WEIGHT OF PETROLEUM LUBRICATING OIL AROMATIC SOLVENT EXTRACT OF APPROXIMATELY 3-4 ACID NUMBER, DIETHYLENE GLYCOL AS A COUPLING AGENT IN THE AMOUNT OF ABOUT 2.25-2.9% BY WEIGHT, 4-7.7% BY WEIGHT OF AN EMULSIFIERFORMING AGENT CONSISTING SUBSTANTIALLY ONLY OF NAPHTHENIC ACIDS HAVING A MOLECULAR WEIGHT OF 280-500 AND AN ACID NUMBER OF 157-159, ABOUT 0.8-1.25% BY WEIGHT OF POTASSIUM HYDROXIDE, AND ABOUT 0.9-1.2% BY WEIGHT OF WATER, SAID SOLUBLE OIL HAVING AN ACID NUMBER OF ABOUT 1.4 TO 3.2.
Claim 2
Dependent Claim
86 words
AN EMULSION-STABLE SOLUBLE OIL COMPOSED OF 87-95% BY WEIGHT OF PETROLEUM LUBRICATING OIL AROMATIC SOLVENT EXTRACT OF APPROXIMATELY 3-4 ACID NUMBER, DIETHYLENE GLYCOL AS A COUPLING AGENT IN THE AMOUNT OF ABOUT 2.25-2.9% BY WEIGHT, 4-7.7% BY WEIGHT OF AN EMULSIFIERFORMING AGENT CONSISTING SUBSTANTIALLY ONLY OF NAPHTHENIC ACIDS HAVING A MOLECULAR WEIGHT OF 280-500 AND AN ACID NUMBER OF 157-159, ABOUT 0.8-1.25% BY WEIGHT OF POTASSIUM HYDROXIDE, AND ABOUT 0.9-1.2% BY WEIGHT OF WATER, SAID SOLUBLE OIL HAVING AN ACID NUMBER OF ABOUT 1.4 TO 3.2.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |