Appeal No. 97-1143
Application 08/115,881
568, 574 (Fed. Cir. 1984). Accordingly, we remand this
application to the examiner to consider whether appellants’
specification provides any standard or guidance for
determining
how close the second or center wheel set or center beam must
be to the center of the base in order to be considered as
"approximately midway."
3. Prior art
In the examiner's response (Paper No. 17) to appellants'
reply brief, the examiner cited, inter alia, a published U.K.
patent application of Kilenstam (copy attached). Kilenstam
discloses a trolley for transporting building material, e.g.,
plaster board, including a pair of retractable wheels (15,16)
located approximately at the center of the trolley which can
be lowered in order to traverse door sills or other
obstructions along the floor (page 1, lines 13-25).
Accordingly, we remand this application to the examiner to
consider the combined teachings of the prior art of record,
e.g., Borgman and Kilenstam. If the examiner concludes that a
prima facie case of obviousness is established by the combined
teachings of the prior
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