Appeal No. 1997-1380
Application 08/301,508
the system for a single layer as described above is
repeated multiple times, as the support surface 534
is lowered correspondingly, producing a multilayer
built up model having precisely controlled
dimensions [column 17, line 50, through column 19,
line 7].
Dependent claim 2 requires the integrated printhead
recited in parent claim 1 to further comprise means for
planarizing the layer formed by the first jet and the
dispenser. Acknowledging that Helinski does not disclose a
planarizing means, the examiner submits that
Pomerantz et al teaches a three dimensional
modelling [sic, modeling] apparatus wherein the
integrated printhead (504) comprises means for
planarizing the layer formed by applicators
(540,570). Therefore, it would have been obvious to
one person ordinary skilled in the art to have
modified Helinski to include means for planarizing
the layer formed by the first jet and the dispenser
(answer, page 4).
Although Pomerantz discloses a planarizing means in the
form of machining unit 590, the examiner’s assertion that such
means is part of an integrated printhead has no basis in the
reference. In short, there is nothing in the combined
teachings of Helinski and Pomerantz which would have suggested
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