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Patent US3825420A successfully refreshed from Google Patents.
US3825420A
Expired / Lapsed
US
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Wrought superalloys
Assignee: Avco Corp
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Filing: 1972-08-21
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Granted: 1974-07-23
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Expires: 1992-08-21
Abstract
Abstract WROUGHT SUPERALLOY COMPOSITIONS POSSESSING HIGH STRENGHT, CORRSION RESISTANCE AND UTILITY AT MODERATE TEMPERTURES ARE PRODUCED BY ATOMIZING A MELT OF THE DESIRED COMPOSITION AND THEREAFTER CONSOLIDATING THE POWDERS BY EXTRUSION AND PRESSFORGING.
Inventors
- 👤 B Ewing
- 👤 F Rizzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:29
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/0433; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/056; Y; Y10; Y10S; Y10S75/00; Y10S75/95
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |