Appeal No. 1997-3260
Application 08/506,153
aerodynamic structures of hypersonic space planes, especially
the nose tip, leading surfaces of wings and air intake
fairings” (col. 1, lines 13-17). The examiner has not
explained why, if a composite is shaped so that the surface to
be exposed to high temperature, oxidizing conditions is the
surface having a higher fiber density, the surface having the
lower fiber density also would have a shape such that it could
be the surface exposed to the high temperature, oxidizing
conditions.
For the above reasons, we conclude that the examiner has
not carried the burden of establishing a prima facie case of
obviousness of the invention recited in any of appellants’
claims.
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