US2778730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plutonium alloy and method of separating it from uranium
Assignee: Individual
•
Filing: 1944-09-29
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Granted: 1957-01-22
•
Expires: 1964-09-29
Abstract
No abstract record available.
Inventors
- 👤 Frank H Spedding
- 👤 Thomas A Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:48
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/48; C; C22; C22B; C22B60/00; C22B60/02; C22B60/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
47 words
THE METHOD OF RECOVERING PLUTONIUM CONTAINED IN A LARGE QUANTITY OF URANIUM WHICH COMPRISES MELTING WITH THE URANIUM FROM 2 TO 5 PERCENT OF TIN, COOLING THE MASS, CONVERTING THE FREE URANIUM IN THE RESULTANT MASS TO URANIUM HYDRIDE, AND SEPARATING THE HYDRIDE FROM THE PLUTONIUM-TIN PHASE.
Claim 2
Independent Claim
47 words
THE METHOD OF RECOVERING PLUTONIUM CONTAINED IN A LARGE QUANTITY OF URANIUM WHICH COMPRISES MELTING WITH THE URANIUM FROM 2 TO 5 PERCENT OF TIN, COOLING THE MASS, CONVERTING THE FREE URANIUM IN THE RESULTANT MASS TO URANIUM HYDRIDE, AND SEPARATING THE HYDRIDE FROM THE PLUTONIUM-TIN PHASE.
Claim 3
Dependent Claim
16 words
A URANIUM-TIN-PLUTONIUM ALLOY CONTAINING ABOUT 78% BY WEIGHT OF URANIUM, ABOUT 20% OF TIN, AND PLUTONIUM.
Claim 4
Dependent Claim
16 words
A URANIUM-TIN-PLUTONIUM ALLOY CONTAINING ABOUT 78% BY WEIGHT OF URANIUM, ABOUT 20% OF TIN, AND PLUTONIUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |