The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 1986
Filed:
Jun. 07, 1985
Henry F Puppolo, North Adams, MA (US);
Sprague Electric Company, North Adams, MA (US);
Abstract
A solderable metal layer is chemically deposited as an electrical contact on a solid-electrolyte capacitor by replacing the conventional silver contact layer of the capacitor with a layer of colloidal carbon containing a metal which is more electropositive than the solderable metal to be deposited, and thereafter contacting the assembly with a salt solution of the solderable metal. The metal of the salt solution is chemically replaced by the more electropositive metal so that the solderable metal plates out on the carbon surface to form the desired solderable contact layer. The salt solution is preferably a copper or nickel salt solution, and the more electropositive metal is preferably iron.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile