US2990353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor control system
Assignee: Individual
•
Filing: 1954-03-01
•
Granted: 1961-06-27
•
Expires: 1974-03-01
Abstract
No abstract record available.
Inventors
- 👤 Donald F Howard
- 👤 Ercole E Motta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:11
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A CONTROL UNIT FOR CONTROLLING THE REACTIVITY OF THERMAL NUCLEAR REACTORS COMPRISING A TUBULAR ELECTRODE HAVING A PLATING OF CADMIUM ON ITS INNER SURFACE, THE THICKNESS OF SAID PLATING BEING LESS THAN .0075 INCH, A SECOND ELECTRODE POSITINED INSIDE SAID TUBULAR ELECTRODE, THE SURFACE AREA OR SAID SECOND ELECTRODE BEING SUBSTANTIALLY LESS THAN THE INNER SURFACE AREA OF SAID TUBULAR ELECTRODE,
Claim 2
Dependent Claim
61 words
A CONTROL UNIT FOR CONTROLLING THE REACTIVITY OF THERMAL NUCLEAR REACTORS COMPRISING A TUBULAR ELECTRODE HAVING A PLATING OF CADMIUM ON ITS INNER SURFACE, THE THICKNESS OF SAID PLATING BEING LESS THAN .0075 INCH, A SECOND ELECTRODE POSITINED INSIDE SAID TUBULAR ELECTRODE, THE SURFACE AREA OR SAID SECOND ELECTRODE BEING SUBSTANTIALLY LESS THAN THE INNER SURFACE AREA OF SAID TUBULAR ELECTRODE,
References Cited (Backward Citations)
US2373352A
Cited
US2431948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |