Patent US2646405A successfully refreshed from Google Patents.
US2646405A
Expired / Lapsed
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Surface active compounds
Assignee: Cities Service Oil Co
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Filing: 1950-01-31
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Granted: 1953-07-21
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Expires: 1970-01-31
Abstract
No abstract record available.
Inventors
- 👤 William B Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:02
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE PROCESS OF RESOLVING EMULSION INCLUDING SUBJECTING A PETROLEUM WATER-IN-OIL EMULSION TO THE ACTION OF A COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 90 TO ABOUT 99 PER CENT OF A CHEMICAL EFFECTIVE TO BREAK A PETROLEUM WATER-INOIL EMULSION AND FROM ABOUT 1 PER CENT TO ABOUT 10 PER CENT OF THE REACTION PRODUCT OBTAINED BY REACTING ONE MOL OF A GLYCERIDE OF A HYDROXY ACID HAVING MORE THAN 11 CARBON ATOMS WITH FROM ABOUT 2 TO ABOUT 3 MOLS OF TRIETHANOL AMINE AT A TEMPERATURE OF ABOUT 180* C., AND NEUTRALIZING THE RESULTING PRODUCT TO A METHYL ORANGE END POINT WITH A HYDROXY ACID HAVING MORE THAN 11 CARBON ATOMS.
Claim 2
Dependent Claim
110 words
THE PROCESS OF RESOLVING EMULSION INCLUDING SUBJECTING A PETROLEUM WATER-IN-OIL EMULSION TO THE ACTION OF A COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 90 TO ABOUT 99 PER CENT OF A CHEMICAL EFFECTIVE TO BREAK A PETROLEUM WATER-INOIL EMULSION AND FROM ABOUT 1 PER CENT TO ABOUT 10 PER CENT OF THE REACTION PRODUCT OBTAINED BY REACTING ONE MOL OF A GLYCERIDE OF A HYDROXY ACID HAVING MORE THAN 11 CARBON ATOMS WITH FROM ABOUT 2 TO ABOUT 3 MOLS OF TRIETHANOL AMINE AT A TEMPERATURE OF ABOUT 180* C., AND NEUTRALIZING THE RESULTING PRODUCT TO A METHYL ORANGE END POINT WITH A HYDROXY ACID HAVING MORE THAN 11 CARBON ATOMS.
References Cited (Backward Citations)
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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) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |