Patent US2182637A successfully refreshed from Google Patents.
US4069370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact material, and terminal
Assignee: WC Heraus GmbH and Co KG
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Filing: 1976-07-16
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Granted: 1978-01-17
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Expires: 1996-07-16
Abstract
Abstract The material is applied to a substrate, for example, terminal bronze, brass, or the like, and comprises, preferably, 50 to 55% gold, 24 to 28% palladium, 15 to 20% silver, 2.5 to 3% tin, 0.08 to 0.15% iridium, 0.08 to 0.15% ruthenium, 0.1 to 0.3% copper and 0.6 to 1% indium.
Inventors
- 👤 Nils Harmsen
- 👤 Franz Sperner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:35
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/023; H01R; H01R13/00; H01R13/02; H01R13/03; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12882; Y10T428/12889
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
61 words
Electrical terminal, particularly for plug or wiping terminals for use in electronics, comprising a carrier of electrical contact terminal material at least partially coated with a contact material consisting essentially of 20to 30% palladium, 15 to 25% silver, 2.5 to 5% tin, 0.05 to 0.5% iridium, 0.05 to 0.5% ruthenium, 0.05 to 0.5% copper, 0.1 to 2% indium, and remainder gold.
Claim 2
Dependent Claim
61 words
Electrical terminal, particularly for plug or wiping terminals for use in electronics, comprising a carrier of electrical contact terminal material at least partially coated with a contact material consisting essentially of 20to 30% palladium, 15 to 25% silver, 2.5 to 5% tin, 0.05 to 0.5% iridium, 0.05 to 0.5% ruthenium, 0.05 to 0.5% copper, 0.1 to 2% indium, and remainder gold.
Claim 3
Dependent Claim
46 words
Electrical terminal according to claim 1, wherein said contact material consists essentially of 50 to 55% gold, 24 to 28% palladium, 15 to 20% silver, 2.5 to 3% tin, 0.08 to 0.15% iridium, 0.08 to 0.15% ruthenium, 0.1 to 0.3% copper, and 0.6 to 1% indium.
References Cited (Backward Citations)
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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) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |