US3097920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of cesium from aqueous solutions by adsorption
Assignee: Individual
•
Filing: 1961-10-30
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Granted: 1963-07-16
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Knoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:52
CPC Classifications
C; C01; C01D; C01D17/00; B; B01; B01D; B01D15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS OF SEPARATING MICROQUANTITIES OF CESIUM VALUES FROM AQUEOUS SOLUTIONS CONTAINING WITH SAID CESIUM VALUES OTHER IONS IN MACROQUANTITIES, CONSISTING IN HEATING CLINOPTILOTILE AT ABOUT 400*C. FOR AT LEAST TWO HOURS, COOLING THE CLINOPTIOLITE TO ROOM TEMPERATURE, CONTACTING THE CLINOPTILITILE WITH SAID AQUEOUS SOLUTION TO BE TREATED, WHEREBY CESIUM IS PREFERENTIALLY TAKEN UP BY THE CLINOPTILOTILE, AND SEPARATING THE SOLUTION CONTAINING SAID OTHER IONS FROM THE CESIUM-CONTAINING CLINOPTILOLITE.
Claim 2
Dependent Claim
69 words
A PROCESS OF SEPARATING MICROQUANTITIES OF CESIUM VALUES FROM AQUEOUS SOLUTIONS CONTAINING WITH SAID CESIUM VALUES OTHER IONS IN MACROQUANTITIES, CONSISTING IN HEATING CLINOPTILOTILE AT ABOUT 400*C. FOR AT LEAST TWO HOURS, COOLING THE CLINOPTIOLITE TO ROOM TEMPERATURE, CONTACTING THE CLINOPTILITILE WITH SAID AQUEOUS SOLUTION TO BE TREATED, WHEREBY CESIUM IS PREFERENTIALLY TAKEN UP BY THE CLINOPTILOTILE, AND SEPARATING THE SOLUTION CONTAINING SAID OTHER IONS FROM THE CESIUM-CONTAINING CLINOPTILOLITE.
References Cited (Backward Citations)
US726091A
Cited
US3017242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |