Patent US3835049A successfully refreshed from Google Patents.
US3835049A
Expired / Lapsed
US
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Oil spill control
Assignee: Citgo Petroleum Corp
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Filing: 1973-08-23
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Granted: 1974-09-10
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Expires: 1993-08-23
Abstract
Abstract HYDROCARBON OIL FLOATING ON THE SURFACE OF WATER IS RECOVERED BY ADMIXING WITH THE HYDROCARBON OIL IN THE PRESENCE OF OXYGEN ONE TO FIFTY PARTS BY WEIGHT OF A DRYING OIL PER ONE HUNDRED PARTS BY WEIGHT OF THE HYDROCARBON OIL, WHEREIN AT LEAST ONE OF TEN CARBON-TO-CARBON BONDS OF THE DRYING OIL ARE DOUBLE BONDS AND WHEREIN THE DRYING OIL CONTAINS AT LEAST ONE CARBONYL MOIETY PER MOLECULE, TO COAGULATE THE ADMIXTURE, AND REMOVING THE ADMIXTURE FROM THE SURFACE OF THE WATER.
Inventors
- 👤 J King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:03
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/682; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |