US3728088A
Expired / Lapsed
US
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Superalloys by powder metallurgy
Assignee: Huntington Alloys Corp
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Filing: 1969-08-25
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Granted: 1973-04-17
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Expires: 1989-08-25
Abstract
Abstract THIS INVENTION RELATES TO THE POWDER METALLURGY OF SUPERALLOYS AND, IN PARTICULAR, TO DISPERSION STRENGTHENED AGE HARDENABLE SUPERALLOYS AND WROUGHT PRODUCTS THEREOF. THE INVENTION ALSO RELATES TO A POWDER METALLURGY METHOD FOR PRODUCING WROUGHT METAL SHAPES OF AGE HARDENABLE SUPERALLOYS, SUCH AS DISPERSION STRENGTHENED SUPERALLOYS CHARACTERIZED METALLOGRAPHICALLY BY A UNIFORM DISTRIBUTION OF DISPERSOIDS IN BOTH THE LONGITUDINAL AND TRANSVERSE DIRECTIONS.
Inventors
- 👤 J Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/001; C22C32/0015; C22C32/0026; B; B22; B22F; B22F9/00; B22F9/02; B22F9/04; C22C1/00; C22C1/10; C22C1/1084; C22C33/00; C22C33/02; C22C33/0257; C22C33/0278; C22C33/0285; B22F2009/043; Y; Y10; Y10S; Y10S75/00; Y10S75/95; Y10S75/951
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |