US3778366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treatment of aqueous suspensions
Assignee: United States Atomic Energy Commission
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Filing: 1971-05-28
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Granted: 1973-12-11
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Expires: 1991-05-28
Abstract
Abstract A METHOD OF TREATING AQUEOUS WASTE STREAMS FOR THE PURPOSE OF REMOVING A SOLUBLE OR DISPERSED MOIETY WHICH COMPRISES PASSING SAID STREAM THROUGH A VERTICALLY DISPOSED, POROUS, PERMEABLE MATERIAL WHICH CONTAINS A ZONE OF FLUIDIZATION AND A SOLID FLUIDIZING MEDIUM IN SAID ZONE AT A VELOCITY SUFFICIENT TO AFFECT TRANSPIRATION OF A PURIFIED WATER PRODUCT THROUGH SAID MATERIAL.
Inventors
- 👤 K Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:51
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/28; C02F1/283; B; B01; B01D; B01D61/00; B01D61/02; B01D61/025; B01D65/00; B01D65/02; B01J; B01J8/00; B01J8/18; B01J8/20; B01D65/04
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |