The ornamental design for an upholsteredseat, as shown and described.
FIG. 1 is a front perspective view of an upholstered seat in the form of a
sofa embodying my design; and
FIG. 2 is a perspective view of an upholstered seat in the form of a love
seat embodying my design.
The rear view of FIGS. 1 and 2 is plain and unornamented, and the end views
that are not shown are identical to the end views shown but a mirror image
thereof.