US2981620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobalt-nickel base alloy
Assignee: Westinghouse Electric Corp
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Filing: 1959-08-24
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Granted: 1961-04-25
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Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Jack T Brown
- 👤 Charles P Mueller
- 👤 Leonard L France
- 👤 Alexander W Cochardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:11
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
A HIGH TEMPERATURE ALLOY HAVING GOOD RESISTANCE TO OVERAGING UNBDER STRESS AT TEMPERATURES IN THE RANGE FROM 1200* F TO 1500* F., COMPRISING, BY WEIGHT, FROM 20% TO 25% NICKEL, FROM .30% TO 1.5% BERYLLIUM, UP TO 2% ZIRCONIUM, UP TO 4% MOLYBDENUM, THE TOTAL OF ZIRCONIUM AND MOLYBDENUM AMOUNTING TO AT LEAST 1% BUT NO MORE THAN 6%, UP TO 2.5% CHROMIUM, AND THE BALANCE COBALT, WITH IMPURITIES AND MINOR ADDITIVES TOTALLING NO MORE THAN 2.5%.
References Cited (Backward Citations)
US2072911A
Cited
US2419825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |