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Patent US3769207A successfully refreshed from Google Patents.
US3769207A
Expired / Lapsed
US
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Process of separation of emulsified or dispersed matter from water
Assignee: Individual
•
Filing: 1971-06-14
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Granted: 1973-10-30
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Expires: 1991-06-14
Abstract
Abstract SEPARATION OF EMULSIFIED OR DISPERSED SUBSTANCES FROM WATER INVOLVING THE PURIFICATION OF WASTED WATER BY FLOTATION OF IMPURITIES AND REMOVAL OF ACCUMULATED FLOATING SLUDGE COMPRISES THE STEPS OF ACCUMULATING FLOATING SLUDGE BY THE FLOTATION OF IMPURITIES UNTIL THE FLOATING SLUDGE EXTENDS ABOVE THE SURFACE OF THE WATER, SEVERING PNEUMATICALLY THAT PORTION OF THE SLUDGE ABOVE THE WATER SURFACE, AND REMOVING THE SLUDGE USING SUCTION JET MEANS. APPARATUS IS PROVIDED THEREFOR.
Inventors
- 👤 E Baer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/24; B01; B01D; B01D17/00; B01D17/02; B01D17/0205; B01D17/0208; B01D17/0214; B03D1/1412; B03D1/1437; B03D1/1443; B03D1/1462; B03D1/1493; B03D1/26; C; C02; C02F; C02F1/00; C02F1/24; C02F1/46; C02F1/461; C02F1/465; C02F2301/00; C02F2301/02; C02F2301/024; C02F2301/026
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |