Appeal No. 1997-4118
Application No. 08/381,814
OPINION
In reaching our decision in this appeal, we have given
careful consideration to appellants’ specification and claims,
to the applied prior art references, and to the respective
positions articulated by appellants and the examiner. As a
consequence of our review, we have made the determinations
which follow.
In rejecting claims 9, 10 and 15 through 17 under 35
U.S.C. § 103 based on Brunnhofer and Nawrot, the examiner
recognizes that the polyamide-based, five layer, vehicle fuel
line hose seen in Brunnhofer differs from the petrol supply
tube defined in appellants’ independent claim 9 on appeal in
that Brunnhofer does not disclose the intermediate layer (2)
therein being a fluoropolymer and does not disclose adhesive
bonding layers (e.g., 3, 5) as being adhesive bonding agent
polymers or copolymers that contain carbonyl groups in their
polymer chains. To account for such differences, the examiner
looks to the patent to Nawrot for a polyamide-based gasoline
transport tube comprising an outer layer of polyamide and an
inner layer of fluoropolymer, wherein the inner layer and
8
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