Patent US4440736A successfully refreshed from Google Patents.
Patent US3274067A successfully refreshed from Google Patents.
US3274067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel rod design
Assignee: Individual
•
Filing: 1965-06-07
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Granted: 1966-09-20
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Expires: 1985-06-07
Abstract
No abstract record available.
Inventors
- 👤 Greebler Paul
- 👤 Kenneth M Horst
- 👤 Eugene E Olich
- 👤 Wolfe Bertram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:38
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/16; G21C3/17; G21C3/18; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A FUEL ELEMENT FOR OBTAINING A THERMAL EXPANSION COEFFICIENT OF REACTIVITY APPROACHING ZERO AND FACILITATING CONTROL OF THE RAPIDLY RESING REACTIVITY OF A NUCLEAR REACTOR THROUGH THE USE OF THE DOPPLER BROADENING EFFECT, THE COMBINATION COMPRISING AN ELONGATED TUBULAR CLADDING HAVING UPPER AND LOWER CLOSED ENDS DEFINING A FISSILE FUEL ZONE WITHIN SAID CLADDING, A PLURALITY OF FROM TWO TO FIVE SERIALLY ARRANGED FUEL SEGMENTS IN SAID ZONE, EACH SEGMENT HAVING ONE END IMMOVABLY FIXED RELATIVE TO SAID CLADDING WITHIN SAID FUEL ZONE AND WITH THE FREE END OF AT LEAST ONE OF SAID SEGMENTS TOGETHER WITH A PROXIMATE FIXED END OF A SECOND SEGMENT AND THE FREE END OF THE UPPERMOST SEGMENT TOGETHER WITH ONE END OF SAID FUEL ZONE DEFINING VOID SPACES OF A LENGTH GREATER THAN THE MAXIMUM THERMAL
Claim 2
Dependent Claim
133 words
IN A FUEL ELEMENT FOR OBTAINING A THERMAL EXPANSION COEFFICIENT OF REACTIVITY APPROACHING ZERO AND FACILITATING CONTROL OF THE RAPIDLY RESING REACTIVITY OF A NUCLEAR REACTOR THROUGH THE USE OF THE DOPPLER BROADENING EFFECT, THE COMBINATION COMPRISING AN ELONGATED TUBULAR CLADDING HAVING UPPER AND LOWER CLOSED ENDS DEFINING A FISSILE FUEL ZONE WITHIN SAID CLADDING, A PLURALITY OF FROM TWO TO FIVE SERIALLY ARRANGED FUEL SEGMENTS IN SAID ZONE, EACH SEGMENT HAVING ONE END IMMOVABLY FIXED RELATIVE TO SAID CLADDING WITHIN SAID FUEL ZONE AND WITH THE FREE END OF AT LEAST ONE OF SAID SEGMENTS TOGETHER WITH A PROXIMATE FIXED END OF A SECOND SEGMENT AND THE FREE END OF THE UPPERMOST SEGMENT TOGETHER WITH ONE END OF SAID FUEL ZONE DEFINING VOID SPACES OF A LENGTH GREATER THAN THE MAXIMUM THERMAL
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |