Patent US3387944A successfully refreshed from Google Patents.
US3387944A
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Batch separation of components of a mixture by total solute reflux
Assignee: Thorium Ltd
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Filing: 1967-04-18
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Granted: 1968-06-11
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Expires: 1987-04-18
Abstract
No abstract record available.
Inventors
- 👤 Sherrington Leonard George
- 👤 Kemp William Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:04
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D11/0488; C; C01; C01F; C01F17/00; C01F17/10; C01F17/17; C22; C22B; C22B3/00; C22B3/20; C22B3/26; C22B3/38; C22B3/384; C22B3/3846; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |