The ornamental design for a plasticcontainer, as shown and described.
FIG. 1 is a top, front perspective view of a plastic container according to the present invention;
FIG. 2 is a front elevational view thereof, the left side, right side and rear elevational views being identical;
FIG. 3 is a side elevational view thereof, taken along an edge;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a front elevational view of a second embodiment of a plastic container of the present invention. The left side, right side and rear elevational views being identical. The top and bottom plan views are identical to that of Embodiment 1; and,
FIG. 7 is a cross-sectional view taken along the line 7-7 in FIGS. 2 & 6.
The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.