US3676084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory metal base alloy composites
Assignee: National Aeronautics and Space Administration
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Filing: 1969-01-24
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Granted: 1972-07-11
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Expires: 1989-01-24
Abstract
Abstract HIGH TEMPRATURE COMPOSITIES OF A DISPERSION STRENGTHENED TUNGSTEN WHEREIN A PORTION OF THE REFRACTORY COMPOUNDS ARE REPRICIPITATED FOR UNIFORM DISTRIBUTION AND A FINER PARTICLES SIZE.
Inventors
- 👤 Max Quatinetz
- 👤 John W Weeton
- 👤 Thomas P Herbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:15
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/0047; B; B22; B22F; B22F2998/00; B22F2998/10; B22F2999/00; 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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |