US3836625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reprocessing of spent nuclear fuel
Assignee: Hoechst AG
•
Filing: 1971-11-22
•
Granted: 1974-09-17
•
Expires: 1991-11-22
Abstract
Abstract REPROCESSING OF NUCLEAR FUEL IS IMPROVED BY RECOVERING URANIUM AND THORIUM DURING AN A ADDITIONAL ANTICYCLIC LIQUID-LIQUID EXTRACTION PROCESS WHICH IS APPLIED TO THE ORGANIC PHASE OF THE FIRST EXTRACTION CYCLE. THE IMPROVEMENT OF THE PROCESS IS BASED ON THE ADDITION OF ETHYLENEDIAMINETETRA-ACETIC ACID (EDTA) TO THE AQUEOUS REEXTRACTING SOLUTION.
Inventors
- 👤 L Schaefer
- 👤 B Wojtech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:49
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |