US3681237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil spillage control process
Assignee: Membrionics Corp
•
Filing: 1971-03-26
•
Granted: 1972-08-01
•
Expires: 1991-03-26
Abstract
Abstract A METHOD FOR CONTROLLING OIL POLLUTION OF OPEN SEAS OR CALM WATERS IS PROVIDED WHEREIN A STABLE OPEN CELL RESILIENT FOAM MATERIAL SPECIALLY TREATED WITH A HYDROPHOBICOLEOPHILIC COMPOSITION TO ENHANCE ITS OIL SORBABILITY AND WATER REPELLENCY IS EMPLOYED TO REMOVE OIL FROM OIL-CONTAMINATED WATERS.
Inventors
- 👤 Julius Orban
- 👤 Joseph Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:31
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y10; Y10S; Y10S428/00; Y10S428/907
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |