Appeal No. 1999-1136
Application No. 08/771,373
We do not consider this rejection to be well taken. As
appellants point out on page 6 of the reply brief, Finicle
does not disclose an intermediate layer of pyrolytic graphite
between a PBN coating and a graphite body, as the examiner
contends, but rather discloses a layer of pyrolytic graphite 8
between a PBN crucible 2 and a PBN coating 10, the purpose of
the graphite layer being to control the temperature uniformity
or profile of the crucible, which is externally heated (col.
1, lines 45 to 51, and col. 2, line 61, to col. 3, line 13).
We find no teaching or suggestion in Finicle which would lead
one of ordinary skill to provide an intermediate pyrolytic
graphite layer between the body 12 and PBN coating 14 of the
boat of Morris, since not only is the body 12 of the Morris
boat made of graphite, rather than the PBN of Finicle crucible
2, but also, unlike the Finicle crucible, the Morris boat is
heated by passing an electrical current therethrough, rather
than being heated externally.
We therefore will not sustain rejection (3).
Conclusion
The examiner's decision to reject claims 1 to 6 is
affirmed as to claims 1 to 3, and reversed as to claims 4 to
11
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