US3703464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of oil spills
Assignee: Chevron USA Inc
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Filing: 1971-05-20
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Granted: 1972-11-21
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Expires: 1991-05-20
Abstract
Abstract A PROCESS FOR TREATING PETROLEUM PRODUCT SPILLS IN DISCLOSED, WHEREBY COCONUT HUSK MATERIAL IS SPREAD ON THE SPILL TO ABSORB IT. WHEN THE SPILL IS ON FRESH OR SALT WATER IN THE FORM OF A "SLICK", THE COCONUT HUSK MATERIAL COAGULATES THE FILM, KEEPS IT FROM SINKING, AND FORMS A MASS WHICH LENDS ITSELF TO EASY REMOVAL FROM THE WATER BY MECHANICAL PICKUP AND THE LIKE.
Inventors
- 👤 Richard L Ferm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:51
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; B; B01; B01J; B01J20/00; B01J20/22
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |