Patent US3799768A successfully refreshed from Google Patents.
US3799768A
Expired / Lapsed
US
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Method of making monocarbide fiberreinforced cobalt-base superalloy composite eutectic castings
Assignee: General Electric Co
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Filing: 1972-03-01
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Granted: 1974-03-26
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Expires: 1992-03-01
Abstract
Abstract A HIGH PERFORMANCE EUTECTIC CASTING COMPRISED OF A COBALT-BASE SUPERALLOY MATRIX REINFORCED WITH 5 TO 15 VOLUME PERCENT OF UNIFORMLY ALIGNED FIBERS OF A METAL MONOCARBIDE EXTENDING CONTINUOUSLY ENTIRELY THROUGH THE CASTING IS MADE BY DIRECTIONALLY SOLIDIFYING A MELT CONTAINING THE CONSTITUENTS OF THE MONOCARBIDE IN AMOUNTS CORRESPONDING TO THE MON0CARBIDE CONTENT OF THE EUTECTIC. THE SOLIDIFICATION RATE IS AT LEAST 1/4''''/HOUR.
Inventors
- 👤 L Tarshis
- 👤 E Buchanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:12
CPC Classifications
C; C30; C30B; C30B21/00; C30B21/02
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |