Appeal No. 97-1143
Application 08/115,881
(3) wheel sets, including a front wheel set located
generally below the bottom step, a center set
located below the center of the base, and a rear set
located generally below the vertical rear legs.
(emphasis added)
The wheels (27) are referred to throughout appellants'
specification as the "center wheels" and beam (25) on which
the
center wheels are mount is referred to as the "center beam"
(page 6). Original claim 1 called for "a second wheel set
mounted on
said base between the front and rear thereof." Original claim
6 called for the second wheel set to be mounted on a "center
beam mechanism."
On November 30, 1994, appellants filed an amendment
(Paper No. 6) to claim 1 changing "a second wheel set mounted
on said base between the front and rear thereof" to read --a
second wheel set mounted on said base approximately midway
between the front and rear thereof--. Claims 10 and 11 were
also added including similar language. The accompanying
"Remarks" stated that no new matter had been entered by the
amendment and that the amendment was supported by the original
specification and claims. However,
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