US3690961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing composite article
Assignee: Haynes International Inc
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Filing: 1970-01-23
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Granted: 1972-09-12
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Expires: 1990-01-23
Abstract
Abstract A NICKEL-ALUMINUM COMPOSITE METALLIC MATERIAL PRODUCED FROM NICKEL AND ALUMINUM POWDERS CHARACTERIZED BY HIGH STRENGTH THROUGHOUT A WIDE RANGE OF TEMPERATURES AND HAVING EXCELLENT RESISTANCE TO OXIDATION AT ELEVATED TEMPERATURES.
Inventors
- 👤 Aurel I Berghezan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:35
CPC Classifications
C; C22; C22C; C22C47/00; C22C47/14; C22C1/00; C22C1/04; C22C1/0433; Y; Y10; Y10S; Y10S29/00; Y10S29/031; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |