Appeal No. 1997-1053
Application No. 08/432,291
to this decision.
The examiner has relied upon the following reference as
evidence of obviousness:
Tam et al. (Tam) 5,215,838 Jun. 1, 1993
Claims 1-32 stand rejected under 35 U.S.C. § 103 as
unpatentable over Tam (Answer, page 3). We reverse this
rejection for reasons which follow.
OPINION
The examiner finds that Tam discloses the same migration
imaging member and imaging process as recited in the claimed
subject matter on appeal except that the uniform exposure of
the migration element is made through a filter of the same
infrared pigment as used in the migration element (Answer,
page 3, citing Example 1 of Tam). The examiner states that
use of such a filter in the Tam process would have been
suggested based on the following facts: (1) the use of filters
in photography and electrophotography is well known in order
to allow certain wavelengths of light to pass while filtering
out other wavelengths of light; (2) Tam, at col. 21, l. 58-
col. 22,
2
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