US2504019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of oil-in-water emulsions
Assignee: Standard Oil Development Co
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Filing: 1948-11-03
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Granted: 1950-04-11
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Expires: 1968-11-03
Abstract
No abstract record available.
Inventors
- 👤 Ike D Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:59
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/047; C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD FOR BREAKING AN EMULSION OF OIL IN WATER WHICH COMPRISES ADJUSTING THE PH OF SAID EMULSION TO A PH NO GREATER THAN 6.0, ADMIXING SAID ACIDFIED EMULSION IN AT LEAST EQUAL AMOUNTS WITH A HYDROCARBON HAVING FROM 3 TO 7 CARBON ATOMS IN THE MOLECULE SUFFICIENT TO CAUSE PHASE SEPARATION, SETTLING THE ADMIXTURE TO FORM A HYDROCARBON PHASE AND A WATER PHASE, AND RECOVERING SAID PHASES.
Claim 2
Independent Claim
68 words
A METHOD FOR BREAKING AN EMULSION OF OIL IN WATER WHICH COMPRISES ADJUSTING THE PH OF SAID EMULSION TO A PH NO GREATER THAN 6.0, ADMIXING SAID ACIDFIED EMULSION IN AT LEAST EQUAL AMOUNTS WITH A HYDROCARBON HAVING FROM 3 TO 7 CARBON ATOMS IN THE MOLECULE SUFFICIENT TO CAUSE PHASE SEPARATION, SETTLING THE ADMIXTURE TO FORM A HYDROCARBON PHASE AND A WATER PHASE, AND RECOVERING SAID PHASES.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |