US3681037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium-beryllium composites and methods of making
Assignee: Dynamet Technology Inc
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Filing: 1969-04-21
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Granted: 1972-08-01
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Expires: 1989-04-21
Abstract
Abstract COMPOSITES OF TITANIUM AND BERYLLIUM ARE FORMED WHICH HAVE A HIGH MODULUS OF ELASTICITY, LOW DENSITY AND USEFUL DUCTILITY. TITANIUM-BERYLLIUM COMPOSITES IN ACCORDANCE WITH THIS INVENTION COMPRISE FROM 90 TO 40% TITANIUM AND FROM 10 TO 60% BY VOLUME BERYLLIUM. THE COMPOSITES ARE FORMED BY CONSOLIDATION OF IRREGULAR SHAPED PATRICLES OF TITANIUM AND BERYLLIUM UNDER CONDITIONS WHICH PREVENT ALLOYING OR COMPOUNDING OF THE TWO METALS.
Inventors
- 👤 Stanley Abkowitz
- 👤 John M Siergiej
- 👤 Ronald D Regan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:43
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/045; C22C1/0458; Y; Y10; Y10S; Y10S29/00; Y10S29/031; Y10S29/045; Y10S29/047; 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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |