Patent US2957251A successfully refreshed from Google Patents.
Patent US4269623A successfully refreshed from Google Patents.
US4269623A
Expired / Lapsed
US
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Copper alloy for reliable electrical connection
Assignee: Furukawa Metals Co Ltd
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Filing: 1979-09-19
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Granted: 1981-05-26
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Expires: 1999-09-19
Abstract
Abstract This invention relates to a copper alloy for reliable electrical connection comprising 0.5-3.0 wt% of Fe, 0.3-0.8 wt% of Zn and the balance being composed of Cu and impurities thereof, which is characterized by that it excels in connecting characteristics relative to connection by compression and, particularly does not permit a glow discharge and growth of cuprous oxide.
Inventors
- 👤 Sadao Inoue
- 👤 Tetsuya Umemura
- 👤 Hiroshi Suzuki
- 👤 Takashi Kuroyanagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:49
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; C; C22; C22C; C22C9/00; C22C9/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
35 words
A copper alloy for giving a reliable connection in mechanical contact with an electric wire, which consists essentially of 0.5-3.0 wt.% of Fe, 0.3-0.8 wt.% of Zn, the balance consisting of Cu and impurities thereof.
Claim 2
Dependent Claim
35 words
A copper alloy for giving a reliable connection in mechanical contact with an electric wire, which consists essentially of 0.5-3.0 wt.% of Fe, 0.3-0.8 wt.% of Zn, the balance consisting of Cu and impurities thereof.
Claim 3
Dependent Claim
39 words
A copper alloy for giving a reliable connection in mechanical contact with an electric wire in accordance with claim 1 which consists of 0.6-2.3 wt.% of Fe, 0.3-0.8 wt.% of Zn, the balance consisting of Cu and impurities thereof.
References Cited (Backward Citations)
US2155406A
Cited
US3522039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-25 | 1984-11-24 | 1985-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-25 | 1988-11-24 | 1989-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-25 | 1992-11-24 | 1993-05-26 | $7700.00 | Window Closed / Lapsed |