US3814635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of powder alloy products
Assignee: Huntington Alloys Corp
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Filing: 1973-01-17
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Granted: 1974-06-04
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Expires: 1993-01-17
Abstract
Abstract METHOD OF PRODUCING DISPERSION STRENGTHENED SUPERALLOYS HAVING IMPROVED HIGH STRESS-REPTURE PROPERTIES AT ELEVATED TEMPERATURES WHEREIN A POWDER METALLURGY PRODUCT PROCESSED SO AS TO ELIMINATE FINE GRAINS, IS HOT WORKED TO PRODUCE A METALLURGICAL STRUCTURE CHARACTERIZED BY COARSE, ELONGATED GRAINS.
Inventors
- 👤 D Cometto
- 👤 I Kirk
- 👤 J Morse
- 👤 R Crickmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:10
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |