US3682626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Niobium-base alloys
Assignee: Westinghouse Electric Corp
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Filing: 1968-10-04
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Granted: 1972-08-08
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Expires: 1988-10-04
Abstract
Abstract A NIOBIUM-BASE ALLOY IS DESCRIBED WHICH IS CHARACTERIZED BY HIGH STRENGTH AND CREEP RESISTANCE. THE ALLOY IS COMPOSED OF 27% HAFNIUM AND A CARBON TO HAFNIUM ATOMIC RATION OF FROM 0.5 TO 1.25 AND THE BALANCE SUBSTANTIALLY NIOBIUM WITH INCIDENTAL IMPURITIES.
Inventors
- 👤 Richard T Begley
- 👤 John L Godshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:38
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |