US2843539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Samarium compensator method for nuclear reactor fuel
Assignee: North American Aviation Corp
•
Filing: 1955-05-16
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Granted: 1958-07-15
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Expires: 1975-05-16
Abstract
No abstract record available.
Inventors
- 👤 Bornstein Ira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:06
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; G21C7/00; G21C7/02; G21C7/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE METHOD OF COMPENSATING FOR THE EXCESS REACTIVITY PROVIDED IN A THERMAL NUCLEAR REACTOR DURING THE PERIOD OF SAMARIUM-149 BUILD-UP COMPRISING INITIALLY DISTRIBUTING IN A PREDETERMINED PATTERN A MASS OF NATURAL SAMARIUM TO PROVIDE IN THE CORE OF SAID REACTOR A MASS OF SAMARIUM-149 SUBSTANTIALLY EQUAL TO THE MASS OF STEADY STATE SAMARIUM-149 IN SAID REACTOR.
Claim 2
Independent Claim
56 words
THE METHOD OF COMPENSATING FOR THE EXCESS REACTIVITY PROVIDED IN A THERMAL NUCLEAR REACTOR DURING THE PERIOD OF SAMARIUM-149 BUILD-UP COMPRISING INITIALLY DISTRIBUTING IN A PREDETERMINED PATTERN A MASS OF NATURAL SAMARIUM TO PROVIDE IN THE CORE OF SAID REACTOR A MASS OF SAMARIUM-149 SUBSTANTIALLY EQUAL TO THE MASS OF STEADY STATE SAMARIUM-149 IN SAID REACTOR.
References Cited (Backward Citations)
GB648293A
Cited
US2708656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |