Patent US2814857A successfully refreshed from Google Patents.
US2814857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic fuel element material for a neutronic reactor and method of fabricating same
Assignee: Individual
•
Filing: 1953-06-16
•
Granted: 1957-12-03
•
Expires: 1973-06-16
Abstract
No abstract record available.
Inventors
- 👤 Winston H Duckworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:42
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/64; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
69 words
A METHOD OF FABRICATING SILICON CARBIDE CERAMIC BODIES OF HIGH COMPRESSIVE STRENGTH WHICH COMPRISES FORMING A MIXTURE OF 10-30 WEIGHT PERCENT URANIUM IN THE FORM OF A URANIUM OXIDE POWDER, 10-30 WEIGHT PERCENT SILICON METAL POWDER, 1 WEIGHT PERCENT MOLYBDENUM POWDER, AND THE BALANCE SILICON CARBIDE POWDER, THAN COMPACTING SAID MIXTURE TO FORM A BODY, AND SINTERING SAID BODY IN A NITROGENOUS ATMOSPHERE AT A TEMPERATURE OF 2650-3050* F.
Claim 2
Independent Claim
69 words
A METHOD OF FABRICATING SILICON CARBIDE CERAMIC BODIES OF HIGH COMPRESSIVE STRENGTH WHICH COMPRISES FORMING A MIXTURE OF 10-30 WEIGHT PERCENT URANIUM IN THE FORM OF A URANIUM OXIDE POWDER, 10-30 WEIGHT PERCENT SILICON METAL POWDER, 1 WEIGHT PERCENT MOLYBDENUM POWDER, AND THE BALANCE SILICON CARBIDE POWDER, THAN COMPACTING SAID MIXTURE TO FORM A BODY, AND SINTERING SAID BODY IN A NITROGENOUS ATMOSPHERE AT A TEMPERATURE OF 2650-3050* F.
Claim 3
Dependent Claim
35 words
A SILICON CARBIDE CERAMIC BODY FORMED BY MIXING 10-30 WEIGHT PERCENT OF SILICON, 10-30 WEIGHT PERCENT OF URANIUM AS A URANIUM OXIDE, 0.5-2.0 WEIGHT PERCENT MOLYBDENUM, AND THE BALANCE SILICON CARBIDE, AND SINTERING AT 2650-3050*F.
Claim 4
Dependent Claim
35 words
A SILICON CARBIDE CERAMIC BODY FORMED BY MIXING 10-30 WEIGHT PERCENT OF SILICON, 10-30 WEIGHT PERCENT OF URANIUM AS A URANIUM OXIDE, 0.5-2.0 WEIGHT PERCENT MOLYBDENUM, AND THE BALANCE SILICON CARBIDE, AND SINTERING AT 2650-3050*F.
References Cited (Backward Citations)
US2422215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |