US3408291A
Expired / Lapsed
US
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Method of separating cations from solutions containing the same
Assignee: Phrix Werke AG
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Filing: 1967-08-31
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Granted: 1968-10-29
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Expires: 1987-08-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas Rainer
- 👤 Weber Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:58
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/395; B; B01; B01J; B01J39/00; B01J39/04; B01J39/08; B01J39/16; B01J39/18; B01J39/22; B01J47/00; B01J47/012; B01J47/018; C; C02; C02F; C02F1/00; C02F1/28; C02F1/286; C02F1/288; C02F1/52; C02F1/5236; D; D01; D01F; D01F11/00; D01F11/02; D01F2/00; D01F2/06; D01F2/08; D01F2/10; D06; D06M; D06M11/00; D06M11/51; D06M11/53; D06M11/58; D06M11/59; D06M11/62; D06P; D06P1/00; D06P1/0076; D06M2101/00; D06M2101/02; D06M2101/04; D06M2101/06; D06M2200/00; D06M2200/10; D06M2200/12
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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |