US3146192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective separation of oil from water
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-01-24
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Granted: 1964-08-25
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Expires: 1982-01-24
Abstract
No abstract record available.
Inventors
- 👤 John H Mcclintock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:42
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; C10; C10G; C10G33/00; C10G33/06; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A METHOD OF SEPARATING OIL FROM AN IMMISCIBLE OILWATER MIXTURE COMPRISING PASSING AT LEAST ONE POLYMERIC SHEET HAVING AN AFFINITY FOR SAID OIL OVER THE SURFACE OF THE WATER, SAID SHEET BEING SELECTED FROM THE CLASS OF POLYMERS CONSISTING OF POLYETHYLENE AND POLYPROPYLENE, WITHDRAWING SAID POLYMERIC SHEET FROM SAID OIL-WATER MIXTURE AND REMOVING THE OIL FILM FROM SAID SHEET.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |