US2873243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for shielding and cooling reactors
Assignee: Individual
•
Filing: 1946-10-08
•
Granted: 1959-02-10
•
Expires: 1966-10-08
Abstract
No abstract record available.
Inventors
- 👤 Eugene P Wigner
- 👤 Leo A Ohlinger
- 👤 Gale J Young
- 👤 Alvin M Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:45
CPC Classifications
G; G21; G21C; G21C11/00; G21C11/02; G21C11/028; G21F; G21F1/00; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
47 words
IN A SYSTEM OF THE CLASS DESCRIBED, MEANS FOR SUSTAINING A NUCLEAR FISSION CHAINS REACTION COMPRISING HEAVY WATER HAVING VERTICAL PASSAGES THERETHOUGH AND THERMAL FLOWING THROUGH SAID PASSAGES AND INTO A CONTAINER ABOVE THE PASSAGE, AND A HYDROCARBON SHIELDING FLUID FLOATING ON THE COOLANT ABOVE THE PASSAGES.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |