Patent US3782929A successfully refreshed from Google Patents.
US3782929A
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US
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Fluxless aluminum brazing
Assignee: United States Atomic Energy Commission
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Filing: 1972-06-23
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Granted: 1974-01-01
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Expires: 1992-06-23
Abstract
Abstract THIS INVENTION RELATES TO A FLUXLESS BRAZING ALLOY FOR USE IN FORMING BRAZED COMPOSITES MADE FROM MEMBERS OF ALUMINUM AND ITS ALLOYS, SAID BRAZING ALLOY CONSISTING OF, IN WEIGHT PERCENT, 35-55 PERCENT ALUMINUM, 10-20 PERCENT SILICON, 25-60 PERCENT GERMANIUM; 65-88 PERCENT ALUMINUM, 2-20 PERCENT SILICON, 2-18 PERCENT INDIUM; 65-80 PERCENT ALUMINUM, 15-25 PERCENT SILICON, 5-15 PERCENT YTTRIUM.
Inventors
- 👤 W Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:19
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K35/002; B23K35/22; B23K35/24; B23K35/28; B23K35/286; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
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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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |