Patent US3677982A successfully refreshed from Google Patents.
US3677982A
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US
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Cellulose sponge for removing oil slicks
Assignee: Phillips Petroleum Co
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Filing: 1970-08-05
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Granted: 1972-07-18
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Expires: 1990-08-05
Abstract
Abstract PETROLEUM OIL FLOATING ON THE SURFACE OF THE WATER IS REMOVED THEREFROM BY ADSORBING THE OIL ON A TREATED CELLULOSE SPONGE AND THEN BURNING THE ADSORBED OIL FROM THE SPONGE WHILE IT REMAINS IN CONTACT WITH THE WATER. DURING THE COMBUSTION, THE TREATED CELLULOSE SPONGE CONTINUES TO ADSORB OIL AND DELIVER IT TO THE COMBUSTIBLE ZONE.
Inventors
- 👤 John W Marx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:48
CPC Classifications
C; C08; C08J; C08J9/00; C02; C02F; C02F1/00; C02F1/68; C02F1/681; C08J2301/00; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924; Y10S521/00; Y10S521/905; Y10S521/918
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |