Patent US3287111A successfully refreshed from Google Patents.
US3287111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zirconium base nuclear reactor alloy
Assignee: Individual
•
Filing: 1965-10-14
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Granted: 1966-11-22
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Expires: 1985-10-14
Abstract
No abstract record available.
Inventors
- 👤 Harold H Klepfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:47
CPC Classifications
C; C22; C22C; C22C16/00; Y; Y10; Y10S; Y10S376/00; Y10S376/90
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
59 words
A ZIRCONIUM BASED ALLOY HAVING A HIGH RESISTANCE TO CORROSION IN STEAM AND WATER AT 300 TO 500*C., HIGH RESISTANCE TO HYDROGEN ABSORPTION AND LOW SUSCEPTIBILITY TO HYDROGEN EMBRITTLEMENT CONSISTING ESSENTIALLY OF NOT MORE THAN 2.3 ATOMIC PERCENT CHROMIUM WITH THE REMAINDER ZIRCONIUM WHEREIN AT LEAST A PORTION OF SAID CHROMIUM IS DISPERSED AS FINELY DIVIDED PARTICLES OF ZRCR2.
Claim 2
Dependent Claim
59 words
A ZIRCONIUM BASED ALLOY HAVING A HIGH RESISTANCE TO CORROSION IN STEAM AND WATER AT 300 TO 500*C., HIGH RESISTANCE TO HYDROGEN ABSORPTION AND LOW SUSCEPTIBILITY TO HYDROGEN EMBRITTLEMENT CONSISTING ESSENTIALLY OF NOT MORE THAN 2.3 ATOMIC PERCENT CHROMIUM WITH THE REMAINDER ZIRCONIUM WHEREIN AT LEAST A PORTION OF SAID CHROMIUM IS DISPERSED AS FINELY DIVIDED PARTICLES OF ZRCR2.
Claim 3
Dependent Claim
62 words
A ZIRCONIUM BASED ALLOY HAVING A HIGH RESISTANCE TO CORROSION IN STEAM AND WATER BETWEEN 300 AND 500 DEGREES AND LOW SUSCEPTIBILITY TO HYDROGEN EMBRITTLEMENT CONSISTING ESSENTIALLY OF ABOUT 1.7 TO 2.3 ATOMIC PERCENT CHROMIUM, ABOUT 0.1 TO 0.2 ATOMIC PERCENT IRON WITH THE REMAINDER ZIRCONIUM WHEREIN AT LEAST A PORTION OF SAID CHROMIUM IS DISPERSED AS FINELY DIVDED PARTICLES OF ZRCR2,
Claim 4
Dependent Claim
62 words
A ZIRCONIUM BASED ALLOY HAVING A HIGH RESISTANCE TO CORROSION IN STEAM AND WATER BETWEEN 300 AND 500 DEGREES AND LOW SUSCEPTIBILITY TO HYDROGEN EMBRITTLEMENT CONSISTING ESSENTIALLY OF ABOUT 1.7 TO 2.3 ATOMIC PERCENT CHROMIUM, ABOUT 0.1 TO 0.2 ATOMIC PERCENT IRON WITH THE REMAINDER ZIRCONIUM WHEREIN AT LEAST A PORTION OF SAID CHROMIUM IS DISPERSED AS FINELY DIVDED PARTICLES OF ZRCR2,
References Cited (Backward Citations)
US3121666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |