US3146213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for use in solvent extraction process for the recovery of uranium and rare earth metals from aqueous solutions
Assignee: Dow Chemical Co
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Filing: 1963-03-04
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Granted: 1964-08-25
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Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 Small Hamish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:18
CPC Classifications
C; C22; C22B; C22B59/00; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; C22B60/0265; C02; C02F; C02F2101/00; C02F2101/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A COMPOSITION OF MATTER SUITABLE FOR THE RECOVERY OF HEAVY METAL VALUES FROM AQUEOUS SOLUTIONS CONTAINING THE SAME WHICH COMPRISES DISCRETE GEL-LIKE WATER-INSOLUBLE ORGANIC SOLVENT-CONTAINING GRANULES OF A COPOLYMER OF FROM 92 TO 99.5 PERCENT BY WEIGHT OF AT LEAST ONE MONOALKENYL AROMATIC HYDROCARBON HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
48 words
A COMPOSITION OF MATTER SUITABLE FOR THE RECOVERY OF HEAVY METAL VALUES FROM AQUEOUS SOLUTIONS CONTAINING THE SAME WHICH COMPRISES DISCRETE GEL-LIKE WATER-INSOLUBLE ORGANIC SOLVENT-CONTAINING GRANULES OF A COPOLYMER OF FROM 92 TO 99.5 PERCENT BY WEIGHT OF AT LEAST ONE MONOALKENYL AROMATIC HYDROCARBON HAVING THE GENERAL FORMULA:
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |