US3752762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing oil from oil contaminated water
Assignee: Individual
•
Filing: 1971-04-05
•
Granted: 1973-08-14
•
Expires: 1991-04-05
Abstract
Abstract APPARATUS IS DISCLOSED FOR USING PUMICE STONES FOR REMOVING OIL FROM OIL-CONTAMINATED WATER AND FROM ENABLING SATURATED PUMICE STONES TO BE CLEANED SO THAT THEY CAN BE REUSED.
Inventors
- 👤 J Cincotta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:48
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/104; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0202; C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; E03; E03F; E03F5/00; E03F5/14; E03F5/16; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |