Appeal No. 2000-0031
Application No. 09/061,526
must the art be searched within which the invention claimed is
classifiable, but also all pertinent and analogous arts
regardless of where classified. In that regard, we see no
reason why the concept of an increasing thickness tread
covering of the type set forth in the claims on appeal would
be limited to
use on a wall- or floor-attached ladder arrangement having
independent rungs or steps like that searched by the examiner
thus far. Accordingly, we suggest the following areas as
examples of those we think should additionally be searched:
Class 182, subclasses 91 and 92; Class 182, subclass 228.2;
and Design Class 25, subclass 69. Other pertinent areas where
rungs or steps with increasing thickness coverings of the
general type claimed could reasonably be found may be known to
the examiner and should also be considered.
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