Cleaning and liquid contact with solids – Processes – Using sequentially applied treating agents
Reexamination Certificate
2007-08-29
2008-12-09
Carillo, Sharidan (Department: 1792)
Cleaning and liquid contact with solids
Processes
Using sequentially applied treating agents
C134S001000, C134S002000, C134S003000, C134S028000, C134S029000, C134S034000, C134S036000, C134S040000, C134S041000, C134S042000, C510S254000, C510S255000, C510S375000, C510S424000, C510S469000, C510S506000
Reexamination Certificate
active
07462249
ABSTRACT:
A surface treatment process for a metal article includes the following steps. Firstly, a metal article, made of at least one of copper and an alloy thereof, is provided. Secondly, a surface of the metal article is degreased. Thirdly, the surface of the metal article is activated in an acid solution. Finally, the surface of the metal article is deactivated by submersion in an antioxidant agent.
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Ding Jiang-Rong
Ren Zheng-Jiang
Xu Hong-Hai
Carillo Sharidan
Reiss Steven M.
Shenzhen Futaihong Precision Industry Co. Ltd.
Sutech Trading Limited
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