Appeal No. 97-1143
Application 08/115,881
BACKGROUND
The appellants' invention relates to a mobile ladder
stand of the type used in warehouses and stores to reach high
shelves. Appellants' specification teaches that when it is
desired to turn the stand of their invention around a tight
corner, the stand may be pivoted about a set of wheels located
below the center of the base of the stand using only about
one-half the turning radius normally required of a prior art
stand (pages 2 through 4). An understanding of the invention
can be derived from a reading of exemplary claims 1, 10 and 11
which appear in the "Appendix" to the appellants' main brief
(Paper No. 13).
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Covert 321,342 Jun. 30, 1885
Shadel et al. (Shadel) 1,355,173 Oct. 12, 1920
Borgman 3,155,190 Nov. 03, 1964
Berry 3,685,851 Aug. 22, 1972
Rice 1 021 831 Nov. 29,
1977
(Canadian Patent)
2
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