US2977223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized and precipitation-hardened nickel-base alloys
Assignee: Westinghouse Electric Corp
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Filing: 1957-12-10
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Granted: 1961-03-28
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Expires: 1977-12-10
Abstract
No abstract record available.
Inventors
- 👤 Jack T Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:31
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A HIGH STRENGTH HIGH TEMPERATURE NICKEL-BASE ALLOY COMPRISING BY WEIGHT FROM 12 TO 28% CHROMIUM, FROM 7 TO 25% MOLYBDENUM, FROM 1 TO 6% ALUMINUM, FROM 0.2 TO 0.8% BORON, FROM 0.2 TO 1% VANADIUM, FROM 0.2 TO 2% MANGANESE, A MAXIMUM OF 0.08% CARBON, UP TO 20% IRON, AD THE BALANCE SUBSTANTIALLY ALL NICKEL EXCEPT FOR MINOR AMOUNTS OF IMPURITIES SAID ALLOY EXHIBITING GOOD WORKABILITY CHARACTERISTICS SO THAT THE FINAL INGOT CASTING MAY BE FORGED OR WROUGHT INTO MASSIVE SHAPES AT TEMPERATURE OF FROM 2000*F. TO 2300*F., AND HAVING PROPERTIES OF HIGH STRENGTH AND DUCTILITY IN THE TEMPERATURE RANGE OF FROM 1300*F. TO 1500*F.
Claim 2
Dependent Claim
105 words
A HIGH STRENGTH HIGH TEMPERATURE NICKEL-BASE ALLOY COMPRISING BY WEIGHT FROM 12 TO 28% CHROMIUM, FROM 7 TO 25% MOLYBDENUM, FROM 1 TO 6% ALUMINUM, FROM 0.2 TO 0.8% BORON, FROM 0.2 TO 1% VANADIUM, FROM 0.2 TO 2% MANGANESE, A MAXIMUM OF 0.08% CARBON, UP TO 20% IRON, AD THE BALANCE SUBSTANTIALLY ALL NICKEL EXCEPT FOR MINOR AMOUNTS OF IMPURITIES SAID ALLOY EXHIBITING GOOD WORKABILITY CHARACTERISTICS SO THAT THE FINAL INGOT CASTING MAY BE FORGED OR WROUGHT INTO MASSIVE SHAPES AT TEMPERATURE OF FROM 2000*F. TO 2300*F., AND HAVING PROPERTIES OF HIGH STRENGTH AND DUCTILITY IN THE TEMPERATURE RANGE OF FROM 1300*F. TO 1500*F.
References Cited (Backward Citations)
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US2247643A
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US2403128A
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GB638007A
Cited
US2783144A
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US2798827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |