US2549437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for breaking petroleum emulsions
Assignee: Baker Petrolite LLC
•
Filing: 1949-08-15
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Granted: 1951-04-17
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Expires: 1969-08-15
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Arthur F Wirtel
- 👤 Owen H Pettingill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:37
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING A COGENERIC MIXTURE OF A HOMOLOGOUS SERIES OF GLYCOL ETHERS OF ALPHA-TERPINEOL; SAID COGENERIC MIXTURE BEING DERIVED EXVLUSIVELY FROM ALPHA-TERPINEOL, ETHYLENE OXIDE AND PROPYLENE OXIDE IN SUCH WEIGHT PROPORTIONS SO THE AVERAGE COMPOSITION OF SAID COGENERIC MIXTURE STATED IN TERMS OF INITIAL REACTANTS LIES APPROXIMATELY WITHIN THE SEGMENT OF THE CIRCLE OF THE ACCOMPANYING DRAWING IN WHICH THE MINIMUM ALPHATERPINEOL CONTENT IS AT LEAST 4% AND WHICH CIRCLE IS IDENTIFICED BY THE FACT THAT POINTS 1,3 AND 6 LIE ON ITS CIRCUMFERENCE, AND WITH THE PROVISO THAT
Claim 2
Dependent Claim
109 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING A COGENERIC MIXTURE OF A HOMOLOGOUS SERIES OF GLYCOL ETHERS OF ALPHA-TERPINEOL; SAID COGENERIC MIXTURE BEING DERIVED EXVLUSIVELY FROM ALPHA-TERPINEOL, ETHYLENE OXIDE AND PROPYLENE OXIDE IN SUCH WEIGHT PROPORTIONS SO THE AVERAGE COMPOSITION OF SAID COGENERIC MIXTURE STATED IN TERMS OF INITIAL REACTANTS LIES APPROXIMATELY WITHIN THE SEGMENT OF THE CIRCLE OF THE ACCOMPANYING DRAWING IN WHICH THE MINIMUM ALPHATERPINEOL CONTENT IS AT LEAST 4% AND WHICH CIRCLE IS IDENTIFICED BY THE FACT THAT POINTS 1,3 AND 6 LIE ON ITS CIRCUMFERENCE, AND WITH THE PROVISO THAT
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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) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |