US3103479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor control rods
Assignee: —
•
Filing: —
•
Granted: 1963-09-10
•
Expires: 1980-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:12
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/10; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
33 words
A CONTROL ROD FOR NUCLEAR REACTORS COMPRISING A CORE OF BORON CONTAINING MATERIAL COVERED BY A NEUTRON ABSORBING LAYER OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF SAMARIUM, GADOLINIUM, ERBIUM, DYSPROSIUM, AND EUROPIUM.
Claim 2
Dependent Claim
33 words
A CONTROL ROD FOR NUCLEAR REACTORS COMPRISING A CORE OF BORON CONTAINING MATERIAL COVERED BY A NEUTRON ABSORBING LAYER OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF SAMARIUM, GADOLINIUM, ERBIUM, DYSPROSIUM, AND EUROPIUM.
Claim 3
Dependent Claim
32 words
A CONTROL ROD FOR NUCLEAR REACTORS COMPRISING A LAYER OF HAFNIUM METAL ENCLOSING A CORE WHICH CONTAINS NEUTRON ABSORBED MATERIAL SELECTED FROM THE GROUP CONSISTING OF SAMARIUM, GADOLINIUM, ERBIUM, DYSPROSIUM, AND EUROPIUM.
Claim 4
Dependent Claim
32 words
A CONTROL ROD FOR NUCLEAR REACTORS COMPRISING A LAYER OF HAFNIUM METAL ENCLOSING A CORE WHICH CONTAINS NEUTRON ABSORBED MATERIAL SELECTED FROM THE GROUP CONSISTING OF SAMARIUM, GADOLINIUM, ERBIUM, DYSPROSIUM, AND EUROPIUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |