Patent US2947678A successfully refreshed from Google Patents.
US2947678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-spaced nuclear reactor fuel assembly
Assignee: North American Aviation Corp
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Filing: 1956-12-18
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Granted: 1960-08-02
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Expires: 1976-12-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Gimera
- 👤 Edward F Weisner
- 👤 Joseph R Wetch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:49
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/36; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A NUCLEAR REACTOR FUEL ELEMENT COMPRISING A PLURALITY OF SPACED FUEL PLATES, SUPPORTING MEANS FOR SAID PLATES, THE SPACES BETWEEN SAID FUEL PLATES INCREASING WITH THE FLUX LEVEL IN SAID PLATES.
Claim 2
Dependent Claim
31 words
A NUCLEAR REACTOR FUEL ELEMENT COMPRISING A PLURALITY OF SPACED FUEL PLATES, SUPPORTING MEANS FOR SAID PLATES, THE SPACES BETWEEN SAID FUEL PLATES INCREASING WITH THE FLUX LEVEL IN SAID PLATES.
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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |