Patent US3783129A successfully refreshed from Google Patents.
US3783129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for the recovery of oil from water
Assignee: Col-Mont Corp
•
Filing: 1971-03-04
•
Granted: 1974-01-01
•
Expires: 1991-03-04
Abstract
Abstract A MATRIX MATERIAL IS PROVIDED FOR RECOVERING OIL FROM WATER COMPRISING OF FINELY DIVIDED COAL PARTICLES BONDED IN SPACED RELATION BY POLYETHYLENE. THE SOIL SORPTION CAPABILITY OF THE MATRIX IS EXCEPTIONALLY HIGH AND THE MATRIX IS HIGHLY SELECTIVE TO OIL IN THE PRESENCE OF OIL AND WATER A CLOSED SYSTEM IS PROVIDED FOR FORMING THE MATRIX MATERIAL AND FOR SEPARATING THE SORBED OIL FROM THE MATRIX MATERIAL FOR REUSE OF THE LATTER. THE MATRIX MATERIAL CARBE IN THE FORM OF A FIXED OR MOVABLE BED THROUGH WHICH THE OIL AND WATER PASS FOR SELECTIVE SORPTION OF THE OIL OR THE MATERIAL CAN BE DISPERSED ON THE WATER SURFACE AND COLLECTED FOLLOWING OIL SORPTION. D R A W I N G
Inventors
- 👤 C Bunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:26
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/046; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |