I claim the ornamental design for a fold-up container/dispenser with a floor and a dispersion platform, as shown and described.
FIG. 1 is a top perspective view of a fold-up container with a floor and a dispersion screen, showing my new design in an assembled configuration with a lid in a closed configuration;
FIG. 2 is a top perspective view thereof, illustrated with the lid in an open configuration;
FIG. 3 is a top perspective view thereof, illustrated with the lid in an open configuration and the dispersion screen folded away from the container;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a left-side elevational view thereof;
FIG. 7 is a right-side elevational view thereof;
FIG. 8 is a top plan view thereof;
FIG. 9 is a bottom plan view thereof; and,
FIG. 10 is a top plan view thereof, illustrated in a flat configuration.
The evenly spaced broken lines in the figures depict portions of the fold-up container that form no part of the claimed design. The unevenly dashed broken lines in the figure depict the boundaries of the claim and form no part of the claimed design.