Appeal 2007-1373
Application 10/651,687
(1) Feitlowitz discloses an improved product produced by
impregnation of a polyester fabric with a stiffening agent mixture
to overcome the problem of lack of retention of initial stiffness,
where the stiffness of the material can be controlled to find a
balance between proper stiffness and proper hand (col. 1, ll. 54-66;
col. 2, ll. 42-48 and 55-60);
(2) Cross discloses a woven synthetic fabric coated with a latex
compound to form a stiff fabric, where the latex compound is
applied so that the compound passes into the interstices of the
fabric but remains substantially clear of the face side (Abstract;
col. 2, ll. 50-58; and col. 3, ll. 20-38);
(3) Cross desires sufficient stiffness in the fabric such that it is self-
supporting, and only marginally aerates or foams the latex
compound to achieve the desired stiffening characteristics (col. 1,
ll. 25-26, 37-39; col. 2, ll. 12 and 23; col. 2, l. 65-col. 3, l. 1; and
col. 4, ll. 50-56);
(4) Cross teaches that a predetermined stiffness is desired, as well as a
test for measuring stiffness, while exemplifying a fabric backing
of polyester yarn of 150 denier (col. 3, ll. 51-52, 60-65; col. 5, ll.
7-11, 27-32; and col. 6, ll. 20-27);
(5) Drelich teaches that “common textile-length fibers” used as a
conventional base starting material vary in length from
approximately ½ inch to about 2 ½ inches (col. 2, ll. 36-40); and
(6) Scholz teaches a backing material with resin impregnation
desirably is warp knit yarn of low denier, preferably no greater
5
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Last modified: September 9, 2013