Patent US3810835A successfully refreshed from Google Patents.
US3810835A
Expired / Lapsed
US
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Process for treating oil slicks using chemical agents
Assignee: Chevron USA Inc
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Filing: 1971-02-25
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Granted: 1974-05-14
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Expires: 1991-02-25
Abstract
Abstract A PROCESS FOR TREATING AN OIL SLICK TO CONTAIN IT AND PREVENT ITS UNCONTROLLED SPREADING COMPRISING APPLYING TO OPEN WATER AREAS IN THE VICINITY OF THE OIL SPILL A CHEMICAL AGENT WHICH REPULSES OIL SPILL. BY JUDICIOUS APPLICATION OF THE CHEMICAL AGENT. THE OIL SLICK CAN BE GATHERED INTO A LIMITED AREA WHICH FACILITIES CLEANUP. THE CHEMICAL AGENT IS SELECTED FROM THE GROUP CONSISTING OF (1) N,N-DIALKYL AMIDES; (2) N-ALKYL AND N-ALKYLENE MONOETHERS OF (A) ETHYLENE GLYCOL AND (B) POLYETHYLENE GLYCOL, (3) POLYETHYLENE GLYCOL MONOESTERS OF N-ALKYL ACIDS; AND (4) N-ALKYL AND N-ALKYLENE MONOESTERS OF PROPYLENE GLYCOL.
Inventors
- 👤 R Ferm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:14
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/682; B; B01; B01J; B01J20/00; B01J20/22; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925
Claims Analysis
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References Cited (Backward Citations)
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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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |