Appeal No. 97-3218
Application 08/541,947
The Rillo patent, assessed in its entirety, reveals to us
that the drywall corner of appellant’s claim 1 reads on the
wallboard corner of the patent. More specifically, it is
quite clear to this panel of the board that a side of the
corner taught by Rillo is capable of being adjustably foldable
to form a third seam at a chosen angle with respect to the
other seams, e.g., the top side of the Rillo corner, intended
for securement to the ceiling, is capable of being folded in
half to form a seam and thereby effecting upwardly angled side
halves. Alternatively, we
readily perceive that with one side of the standard three-
sided corner piece of Rillo slit as disclosed by the patentee
(from straight edge to apex), a side portion (formed by the
slitting)
is capable of being adjustably foldable to form a third seam
at a chosen angle with respect to the other two seams. Thus,
claim 1 is anticipated by the teaching of Rillo.
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