US3356494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluxless aluminum brazing alloys
Assignee: Reynolds Metals Co
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Filing: 1964-12-23
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Granted: 1967-12-05
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Expires: 1984-12-23
Abstract
No abstract record available.
Inventors
- 👤 Bredzs Nikolajs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:11
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/10; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286; B23K35/288; C22C21/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A FLUXLESS BRAZING ALLOY FOR ALUMINUM CONSISTING ESSENTIALLY OF FROM ABOUT 63 TOABOUT 78.5 WEIGHT PERCENT OF ALUMINUM AND FROM ABOUT 4.5 TO ABOUT 10.5 WEIGHT PERCENT OF MAGNESIUM, THE BALANCE AT LEAST ONE MELTING TEMPERATURE DEPRESANT METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND ZINC, SAID ALLOY HAVING A MELTING RANGE SUCH AS TO BE EFFECTIVE FOR BRAZING AT A TEMPERATURE IN THE RANGE FROM ABOUT 450*C. TO ABOUT 500*C.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |