US2792369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions employing certain oxyalkylated diethylene triamines
Assignee: Baker Petrolite LLC
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Filing: 1954-09-15
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Granted: 1957-05-14
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Expires: 1974-09-15
Abstract
No abstract record available.
Inventors
- 👤 Woodrow J Dickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:50
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO A DEMULSIFYING AGENT INCLUDING A COGENERIC MIXTURE OF A HOMOLOGOUS SERIES OF GLYCOL ETHERS OF DIETHYLENE TRIAMINE; SAID COGENERIC MIXTURE BEING DERIVED EXCLUSIVELY FROM DIETHYLENE TRIAMINE, PROPYLENE OXIDE AND ETHYLENE OXIDE IN SUCH WEIGHT PROPORTION SO THE AVERAGE COMPOSTION OF SAID COGENERIC MIXTURE STATED IN TERMS OF THE INITIAL REACTANTS LIES APPROXIMATELY WITHIN THE TRAPEZOID OF THE ACCOMPANYING DRAWING IN WHICH THE MINIMUM DIETHYLENE TRIAMINE CONTENT IS AT LEAST 1.75% AND WHICH TRAPEZOID IS IDENTIFIED BY THE FACT THAT ITS AREA LIES WITHIN THE STRAIGHT LINES A,B,F,E.
Claim 2
Dependent Claim
103 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO A DEMULSIFYING AGENT INCLUDING A COGENERIC MIXTURE OF A HOMOLOGOUS SERIES OF GLYCOL ETHERS OF DIETHYLENE TRIAMINE; SAID COGENERIC MIXTURE BEING DERIVED EXCLUSIVELY FROM DIETHYLENE TRIAMINE, PROPYLENE OXIDE AND ETHYLENE OXIDE IN SUCH WEIGHT PROPORTION SO THE AVERAGE COMPOSTION OF SAID COGENERIC MIXTURE STATED IN TERMS OF THE INITIAL REACTANTS LIES APPROXIMATELY WITHIN THE TRAPEZOID OF THE ACCOMPANYING DRAWING IN WHICH THE MINIMUM DIETHYLENE TRIAMINE CONTENT IS AT LEAST 1.75% AND WHICH TRAPEZOID IS IDENTIFIED BY THE FACT THAT ITS AREA LIES WITHIN THE STRAIGHT LINES A,B,F,E.
References Cited (Backward Citations)
US2457634A
Cited
US2622099A
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US2649483A
Cited
US2552530A
Cited
US2552531A
Cited
US2589200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |