Patent US2935456A successfully refreshed from Google Patents.
US2935456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable area control rod for nuclear reactor
Assignee: Individual
•
Filing: 1957-03-14
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Granted: 1960-05-03
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Expires: 1977-03-14
Abstract
No abstract record available.
Inventors
- 👤 Norman E Huston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:23
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
IN A NUCLEAR REACTOR, A CONTROL DEVICE COMPRISING A SHEET CONTAINING A MATERIAL HAVING A HIGH THERMALNEUTRON ABSORPTION CROSS-SECTION POSITIONED ALONG THE LONGITUDINAL AXIS OF SAID DEVICE, ROTATION MEANS ENGAGING SAID SHEET, SAID ROTATION MEANS BEING ADAPTED TO WIND SAID SHEET ABOUT SAID AXIS AND TO UNWIND SAID SHEET ABOUT SAID AXIS, THEREBY CHANGING THE EFFECTIVE SURFACE AREA OF SAID SHEET.
References Cited (Backward Citations)
CH233011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |