US3663217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing alloy for elevated temperature service
Assignee: Huntington Alloys Corp
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Filing: 1970-08-07
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Granted: 1972-05-16
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Expires: 1990-08-07
Abstract
Abstract Brazing alloy of composition containing gold, nickel, palladium, silver and copper has satisfactory flow characteristics for brazing at a temperature not exceeding 1,900* F. and provides brazed bonds having good strength and oxidation resistance at elevated temperatures such as 1,000* F. or higher.
Inventors
- 👤 John Henry Olson
- 👤 Raymond Francis Vines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:19
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3013; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12889; Y10T428/12951; Y10T428/12972
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
39 words
An alloy as set forth in claim 1 containing 10 percent to 12 percent nickel, 12 percent to 14 percent palladium, 17 percent to 19 percent silver, 6 percent to8 percent copper and 49 percent to 51 percent gold.
Claim 2
Dependent Claim
30 words
An alloy as set forth in claim 1 containing about 11 percent nickel, about 13.5 percent palladium, about 18.5 percent silver, about 7 percent copper and about 50 percent gold.
Claim 3
Dependent Claim
30 words
An alloy as set forth iN claim 1 containing about 12 percent nickel, about 7 percent palladium, about 17 percent silver, about 10 percent copper and about 54 percent gold.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |