Appeal No. 2004-0119
Application 08/644,170
this teaching the examiner concludes that it would have been
obvious to one of ordinary skill in the art at the time
appellants’ invention was made to have further modified Mino by
forming the tool of aluminum as taught by Zelenka in order to
reduce the weight of the tool and to reduce the cost of
manufacture. In this regard, the examiner further urges that
[i]t would have been obvious to one of ordinary
skill in the art to have formed the tool of Mino et al. out
of any preferred material, since it has been held to be
within the general skill of a worker in the art to select a
known material on the basis of its suitability for the
intended use as a matter of obvious design choice
(answer, page 4).
To account for the third difference noted above, the
examiner has pointed to Ogden, urging that this patent teaches
that it is known in the art to provide thick, anodic coatings on
aluminum parts in order to protect against abrasion and corrosion
and to provide a tough, electrically insulating coating. From
this teaching, the examiner concludes (answer, pages 4-5) that it
would have been obvious to one of ordinary skill in the art at
the time the invention was made to have provided an anodic
coating on the modified tool of Mino as taught by Ogden in order
to protect against abrasion and corrosion and to provide a tough,
electrically insulating coating. With regard to the thickness of
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