Patent US3732162A successfully refreshed from Google Patents.
US3732162A
Expired / Lapsed
US
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Method of removing oil spills from water
Assignee: Texaco Inc
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Filing: 1971-07-06
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Granted: 1973-05-08
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Expires: 1991-07-06
Abstract
Abstract OIL SPILLS ARE REMOVED FROM THE SURFACE OF A BODY OF WATER BY CONTACTING THE OIL WITH A COAGULATING AMOUNT OF A COAGULANT SUCH AS ASPHALT AND MIXTURES OF WAX OR ASPHALT WITH ANTI-CAKING AGENTS. ENOUGH COAGULANT IS USED TO FORM A FLOATING, SEMI-COLID MASS WITTH THE OIL. THE COAGULANT MAY BE USED IN FINELY DIVIDED FORM OR IN A MOLTEN STATE.
Inventors
- 👤 F Mccoy
- 👤 H Hess
- 👤 R Sung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:51
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |