The ornamental design for a collapsiblecart, as shown and described.
FIG. 1 shows a perspective view of the collapsible cart.
FIG. 2 shows a right-side elevation view of the collapsible cart.
FIG. 3 shows a left-side elevation view of the collapsible cart.
FIG. 4 shows a top plan view of the collapsible cart.
FIG. 5 shows a bottom plan view of the collapsible cart.
FIG. 6 shows a front-end elevation view of the collapsible cart; and,
FIG. 7 shows a rear end elevation view of the collapsible cart.
The broken lines shown in the figures are for the purpose of illustrating portions of the collapsible cart and form no part of the claimed design.
The collapsible cart is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.