US2570194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high-temperature alloys and articles
Assignee: Huntington Alloys Corp
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Filing: 1950-08-17
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Granted: 1951-10-09
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Expires: 1970-08-17
Abstract
No abstract record available.
Inventors
- 👤 Bieber Clarence George
- 👤 Sumpter Walter Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:07
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD OF OBTAINING IMPROVED HIGH TEMPERATURE PROPERTIES AT ABOUT 1200* F. AND HIGHER IN AN ALLOY CONTAINING 14% TO 16% CHROMIUM, 0.4% TO 0.8% ALUMINUM, 2.25% TO 2.65% TITANIUM, UP TO 0.1% CARBON,0.4% TO 1.2% COLUMBIUM WITH THE COLUMBIUM CONTENT BEING AT LEAST TEN TIMES THE CARBON CONTENT, 0.01% TO 0.08% ZIRCONIUM, 6% TO 8% IRON, 0.2% TO 0.5% SILICON AND THE BALANCE ESSENTIALLY NICKEL, WHICH COMPRISES SUBJECTING THE ALLOY TO HEAT TREATMENT AT ABOUT 2100* F. FOR ABOUT FOUR HOURS, RAPIDLY COOLING THE ALLOY, THEREAFTER HEATING THE ALLOY WITHIN THE RANGE OF 1650* F. TO 1550* F. FOR 1 TO 24 HOURS, RAPIDLY COOLING THE ALLOY AND THEREAFTER AGING THE ALLOY WITHIN THE RANGE OF 1300* F. TO 1500* F. FOR 8 TO 20 HOURS.
Claim 2
Independent Claim
127 words
A METHOD OF OBTAINING IMPROVED HIGH TEMPERATURE PROPERTIES AT ABOUT 1200* F. AND HIGHER IN AN ALLOY CONTAINING 14% TO 16% CHROMIUM, 0.4% TO 0.8% ALUMINUM, 2.25% TO 2.65% TITANIUM, UP TO 0.1% CARBON,0.4% TO 1.2% COLUMBIUM WITH THE COLUMBIUM CONTENT BEING AT LEAST TEN TIMES THE CARBON CONTENT, 0.01% TO 0.08% ZIRCONIUM, 6% TO 8% IRON, 0.2% TO 0.5% SILICON AND THE BALANCE ESSENTIALLY NICKEL, WHICH COMPRISES SUBJECTING THE ALLOY TO HEAT TREATMENT AT ABOUT 2100* F. FOR ABOUT FOUR HOURS, RAPIDLY COOLING THE ALLOY, THEREAFTER HEATING THE ALLOY WITHIN THE RANGE OF 1650* F. TO 1550* F. FOR 1 TO 24 HOURS, RAPIDLY COOLING THE ALLOY AND THEREAFTER AGING THE ALLOY WITHIN THE RANGE OF 1300* F. TO 1500* F. FOR 8 TO 20 HOURS.
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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |