The ornamental design for a linttrapovalcontainer, as shown and described.
FIG. 1 is an upper perspective view of the lint trap oval container showing my design;
FIG. 2 is an end view thereof;
FIG. 3 is a side view thereof, the opposite side being a mirror image thereof;
FIG. 4 is an opposite end view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a cross-section view of FIG. 2, taken along line 7-7, thereof.
The broken lines showing of liquid in FIG. 7 is included for illustrating the environmental matter of the lint trap oval container, and forms no part of the claimed design.