US Patent 7638721 Contact surfaces for electrical contacts
Patent 7638721 was granted and assigned to Bosch on December, 2009 by the United States Patent and Trademark Office.
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Patent abstract
A contact surface. for electrical contacts may include an Ag layer deposited on a copper-based substrate using galvanic methods. The Ag layer includes finely dispersed graphite particles in a quantity of, e.g., 1 to 3 weight % of the Ag layer, the graphite particles having a length in the range of, e.g., 0.5 to 20 μm.
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US Patent 07638721 Contact surfaces for electrical contacts US Patent 7638721 Contact surfaces for electrical contacts
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Patent Number
0763872100
Patent Number
763872100
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
076387210
Date of Patent
December 29, 2009
0Patent Application Number
105748790
Date Filed
August 3, 2004
0Official Website
Patent Primary Examiner
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
076387210
Date of Patent
December 29, 2009
0Patent Application Number
105748790
Date Filed
August 3, 2004
0Official Website
Patent Primary Examiner
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US Patent 07638721 Contact surfaces for electrical contacts
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07638721
Date of patent
December 29, 2009
Patent application number
10574879
Date Filed
August 3, 2004
Patent primary examiner
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