Patent US2659138A successfully refreshed from Google Patents.
US2659138A
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Method of brazing and brazing alloy
Assignee: Alcoa Corp
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Filing: 1948-12-10
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Granted: 1953-11-17
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Expires: 1968-12-10
Abstract
No abstract record available.
Inventors
- 👤 Philip T Stroup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:41
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A BRAZING ALLOY COMPOSED ESSENTIALLY OF SILICON, GERMANIUM AND ALUMINUM AND CONTAINING NOT MORE THAN ABOUT 0.5 PER CENT BY WEIGHT OF OTHER METAL OR METALLOID, THE PERCENTAGE OF SILICON BY WEIGHT BEING ABOUT EQUAL TO 11.5 MINUS X AND THE PERCENTAGE OF GERMANIUM BY WEIGHT BEING ABOUT EQUAL TO 4.5X WHERE X REPRESENTS A NUMBER NOT LESS THAN ABOUT 1 NOR GREATER THAN ABOUT 10.5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |