Appeal No. 1999-1787
Application No. 08/797,521
4) that Simon shows lift cords with such a relationship.
However, appellant has additionally argued that Simon teaches
interweaving the lift cord with a riser cord of the associated
ladder, wherein the lift cord is wrapped around the riser cord
at predetermined intervals so that at times the lift cord lies
outside the riser cord and at other times it lies on the
inside of the riser cord and thus between the riser cords of
the associated ladder. This interweaving of the lift cord and
the riser cord in Simon gives rise to appellant’s argument
(brief, page 7) that Simon does not teach or suggest that the
at least one lift chord which is interwoven with the cross
rungs of a given ladder also remains “between the riser cords
of the associated ladder substantially along the entire length
of the riser cords,” as in claim 1 on appeal. This aspect of
appellant’s invention is shown in Figures 5 and 6 of the
application drawings and described on pages 5 and 6 of the
specification as being a preferred embodiment.
Realizing that the lift cords in Simon do not remain
between the riser cords of the associated ladder substantially
along the entire length of the riser cords as specified in
5
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