US2822260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decontamination of uranium
Assignee: Individual
•
Filing: 1956-02-21
•
Granted: 1958-02-04
•
Expires: 1976-02-21
Abstract
No abstract record available.
Inventors
- 👤 Harold M Feder
- 👤 Norman R Chellew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:04
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0291; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/48; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS OF REMOVING FISSION PRODUCTS FROM NEUTRONBOMBARDED URANIUM COMPRISING MELTING SAID URANIUM IN CONTACT WITH AT LEAST ONE REFRACTORY OXIDE SELECTED FROM THE GROUP CONSISTING OF URANIUM DIOXIDE, THORIUM OXIDE, MAGNESIUM OXIDE, BERYLLIUM OXIDE AND ALUMINUM OXIDE WHEREBY A SLAG LAYER FORMS, AND SEPARATING THE FISSION PRODUCTS-ENRICHED SLAG LAYER FROM A URANIUM LAYER.
Claim 2
Dependent Claim
54 words
A PROCESS OF REMOVING FISSION PRODUCTS FROM NEUTRONBOMBARDED URANIUM COMPRISING MELTING SAID URANIUM IN CONTACT WITH AT LEAST ONE REFRACTORY OXIDE SELECTED FROM THE GROUP CONSISTING OF URANIUM DIOXIDE, THORIUM OXIDE, MAGNESIUM OXIDE, BERYLLIUM OXIDE AND ALUMINUM OXIDE WHEREBY A SLAG LAYER FORMS, AND SEPARATING THE FISSION PRODUCTS-ENRICHED SLAG LAYER FROM A URANIUM LAYER.
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |