Appeal No. 1997-4044 Page 12
Application No. 08/504,233
combine Maas and Davis absent the use of impermissible
hindsight.
We agree with the appellant that claim 1, taken as a
whole, requires all the fibers embedded in the wall structure
of the inflatable tubular structure to extend solely in a
direction substantially parallel to the longitudinal axis of
the inflatable tubular structure. As such, the combined
teachings of Maas and Boxmeyer are not suggestive of the
subject matter of claim 1 since all the fibers embedded in the
wall structure of the inflatable tubular structure of Boxmeyer
do not extend solely in a direction substantially parallel to
the longitudinal axis of the inflatable tubular structure due
to the presence of the first layer of filaments 304 and the
third layer of filaments 307. However, for the reasons set
forth above, it is our view that the combined teachings of
Maas and Davis are suggestive of the subject matter of claim 1
since all the fibers embedded in the wall structure of the
inflatable tubular structure of Davis do extend solely in a
direction substantially parallel to the longitudinal axis of
the inflatable tubular structure due the use of only polar
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