US4606981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ductile brazing alloys containing reactive metals
Assignee: Osram Sylvania Inc
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Filing: 1984-03-09
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Granted: 1986-08-19
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Expires: 2004-03-09
Abstract
Abstract Brazing alloys containing up to a specified amount of a reactive metal selected from the group consisting of titanium, zirconium, vanadium and mixtures thereof and only one metal selected from the group consisting of silver, gold, palladium, iron, nickel, copper and aluminum are ductile and can be rolled into foils.
Inventors
- 👤 Howard Mizuhara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:27
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/322; B23K35/02; B23K35/0222; B23K35/0233; B23K35/28; B23K35/286; B23K35/30; B23K35/3013; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
43 words
An article consisting essentially of a ductile brazing foil having a thickness of from about 2 to about 6 mils, said foil being made of a binary alloy of from about 0.1 to 4% by weight of titanium and the balance being gold.
Claim 2
Dependent Claim
43 words
An article consisting essentially of a ductile brazing foil having a thickness of from about 2 to about 6 mils, said foil being made of a binary alloy of from about 0.1 to 4% by weight of titanium and the balance being gold.
Claim 3
Dependent Claim
21 words
An alloy of claim 1 wherein said titanium is present in amounts of from about 1% to about 3% by weight.
Claim 4
Dependent Claim
11 words
An alloy of claim 1 wherein said reactive metal is titanium.
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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) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |