US3702791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming superalloys
Assignee: National Aeronautics and Space Administration
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Filing: 1970-04-20
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Granted: 1972-11-14
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Expires: 1990-04-20
Abstract
Abstract A HIGHLY ALLOYED MATERIAL OBTAINED USING PREALLOYED POWDERS IS EASILY SHAPED AT HIGH TEMPERATURES IF IT BECOMES SUPERPLASTIC BECAUSE OF ITS PARTICULAR MICROSTURCTURE. SUBSEQUENT HEAT TREATMENTS RESTORE THE ABILITY OF THE MATERIAL TO RESIST DEFORMATION AT HIGH TEMPERATURES.
Inventors
- 👤 John C Freche
- 👤 William J Waters
- 👤 Richard L Ashbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:26
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/0433; B; B22; B22F; B22F3/00; B22F3/12; B22F3/1208; B22F3/1258; B22F3/1266; B22F3/14; B22F3/15; B22F3/24
Claims Analysis
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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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |