US2813003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline carbonate leaching process for uranium extraction
Assignee: Individual
•
Filing: 1952-12-09
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Granted: 1957-11-12
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Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Thunaes Arvid
- 👤 Brown Ernest Arthur
- 👤 Rabbitts Alfred Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:07
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0221; C22B60/0247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN A PROCESS FOR SEPARATING URANIUM FROM URANIUM BEARING MATERIAL, THE STEP OF LEACHING WITH A SOLUTION CONTAINING A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM AND AMMONIUM CARBONATES, BICARBONATE ION AND A PERMANGANATE OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, CALCIUM AND AMMONIUM.
Claim 2
Dependent Claim
50 words
IN A PROCESS FOR SEPARATING URANIUM FROM URANIUM BEARING MATERIAL, THE STEP OF LEACHING WITH A SOLUTION CONTAINING A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM AND AMMONIUM CARBONATES, BICARBONATE ION AND A PERMANGANATE OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, CALCIUM AND AMMONIUM.
References Cited (Backward Citations)
US1999807A
Cited
US2597504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |