Appeal No. 2005-1579 Page 6
Application No. 09/963,625
process and in so doing arrive at a sulfuric acid concentration
within the here claimed range, especially given the disclosure of
Gillich as to the reported workable concentration of sulfuric
acid for a similar anodizing step. In this regard, see
Application Example D of Korte wherein a sulfuric acid
concentration of from 17-22 percent is employed in an anodization
step.
As for the claim requirement for a clear anodized layer
suitable for color finishing, we note that the anodized layer of
Korte is suitable for color finishing and Gillich (column 2, line
10) teaches that the anodized layers obtained can be clear to
yellowish depending on conditions of treatment and the use of
high purity aluminum in the alloy. See column 1, line 66 through
column 2, line 29 of Gillich. Thus, we agree with the examiner
that obtaining a clear anodized layer in Korte prior to the
coloring step would have been a reasonably expected option that
would have been well within the skill of the art based on the
teachings of the applied references.
Appellants argue that the combined teachings of Korte and
Gillich provide no reasonable suggestion or expectation of
success in obtaining a clear anodized coating for an alloy of a
magnesium content, as claimed herein. In this regard, appellants
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: November 3, 2007