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. 04, 1980
Filed:
May. 03, 1979
Applicant:
Inventors:
Yoshio Kawasumi, Saitama, JP;
Haruki Sato, Saitama, JP;
Assignee:
Nippon Mining Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 20 ; 204 / ; 204 40 ;
Abstract
A method for preparing a raw board for use in printed circuits comprising the steps of first electroplating a foil or sheet of synthesized resins in an electrolytic bath containing copper sulfate, sulfuric acid, chlorine ion and a surface glazing agent including thiourea, and secondly electroplating the foil or sheet completed the above step in a conventional electrolytic bath containing copper sulfate and sulfuric acid. Also, an apparatus therefor is disclosed.