US2944979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions employing certain oxyalkylated pentaerythritols
Assignee: Baker Petrolite LLC
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Filing: 1954-05-24
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Granted: 1960-07-12
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Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Owen H Pettingill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:16
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 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 PENTAERYTHRITOL, SAID COGENERIC MIXTURE BEING DERIVED EXCLUSIVELY FROM PENTAERYTHRITOL, BUTYLENE OXIDE, PROPYLENE OXIDE AND ETHYLENE OXIDE IN SUCH WEIGHT PROPORTIONS, SO THAT THE AVERAGE COMPOSITION OF SAID COGENERIC MIXTURE STATED IN TERMS OF THE INITIAL REACTANTS, LIES APPROXIMATELY WITHIN THE TRUNCATED TRIANGULAR PYRAMID INDENTIFIED AS E,H,F,I, G AND I IN FIG 1, WITH THE PROVISO THAT THE THE PERCENTAGE OF ETHYLENE OXIDE IS WITHIN THE LIMITS OF 2% TO 39.5%, BY WEIGHT, AND THE REMAINING THREE INITIAL REACTANTS RECALCULATED TO 100% BASIS, LIE APPROXIMATELY WITHIN THE TRIANGLE DEFINED IN FIGURE 2 BY POINTS 1, 4 AND 6
Claim 2
Dependent Claim
128 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 PENTAERYTHRITOL, SAID COGENERIC MIXTURE BEING DERIVED EXCLUSIVELY FROM PENTAERYTHRITOL, BUTYLENE OXIDE, PROPYLENE OXIDE AND ETHYLENE OXIDE IN SUCH WEIGHT PROPORTIONS, SO THAT THE AVERAGE COMPOSITION OF SAID COGENERIC MIXTURE STATED IN TERMS OF THE INITIAL REACTANTS, LIES APPROXIMATELY WITHIN THE TRUNCATED TRIANGULAR PYRAMID INDENTIFIED AS E,H,F,I, G AND I IN FIG 1, WITH THE PROVISO THAT THE THE PERCENTAGE OF ETHYLENE OXIDE IS WITHIN THE LIMITS OF 2% TO 39.5%, BY WEIGHT, AND THE REMAINING THREE INITIAL REACTANTS RECALCULATED TO 100% BASIS, LIE APPROXIMATELY WITHIN THE TRIANGLE DEFINED IN FIGURE 2 BY POINTS 1, 4 AND 6
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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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |