Patent US2856339A successfully refreshed from Google Patents.
US2856339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutronic reactors
Assignee: Individual
•
Filing: 1945-05-28
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Granted: 1958-10-14
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Expires: 1965-05-28
Abstract
No abstract record available.
Inventors
- 👤 Eugene P Wigner
- 👤 Gale J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:30
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/04; G21C1/06; G21C1/08; G21C1/10; G21C1/12; G21C19/00; G21C19/02; G21C19/10; G21C3/00; G21C3/02; G21C3/04; G21C3/06; G21C3/12; G21C7/00; G21C7/36; G21F; G21F5/00; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A NEUTRONIC REACTOR HAVING VERTICALLY DISPOSED RODS OF THERMAL NEUTRON FISSIONABLE MATERIAL AND HAVING A CHAMBER OF LIQUID COOLANT SURROUNDING THE TOP ENDS OF SAID RODS, THE IMPROVEMENT COMPRISING A COFFER DAM SLEEVE SEALABLE TO THE FLOOR OF THE CHAMBER IN POSITIONS SURROUNDING THE ENDS OF THE RODS, A RADIATION SHIELD SLEEVE DISPOSED IN AND VERTICALLY RECIPROCABLE THROUGH THE COFFER DAM SLEEVE, AND AN ENGAGING MEMBER DISPOSED IN AND RECIPROCABLE, AXIALLY OF THE RADIATION SHIELD AND ADAPTED
Claim 2
Dependent Claim
78 words
IN A NEUTRONIC REACTOR HAVING VERTICALLY DISPOSED RODS OF THERMAL NEUTRON FISSIONABLE MATERIAL AND HAVING A CHAMBER OF LIQUID COOLANT SURROUNDING THE TOP ENDS OF SAID RODS, THE IMPROVEMENT COMPRISING A COFFER DAM SLEEVE SEALABLE TO THE FLOOR OF THE CHAMBER IN POSITIONS SURROUNDING THE ENDS OF THE RODS, A RADIATION SHIELD SLEEVE DISPOSED IN AND VERTICALLY RECIPROCABLE THROUGH THE COFFER DAM SLEEVE, AND AN ENGAGING MEMBER DISPOSED IN AND RECIPROCABLE, AXIALLY OF THE RADIATION SHIELD AND ADAPTED
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |