The ornamental design for an inkcartridge, as shown and described.
FIG. 1 is a front, top and left side perspective view of a first embodiment of an ink cartridge showing our new design;
FIG. 2 is a rear, bottom and right side perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a right side view thereof; and,
FIG. 9 is a rear, bottom and right side perspective view of a second embodiment of an ink cartridge showing our new design.
The features shown in broken lines in the drawings depict environmental subject matter only and form no part of the claimed design. The dot-dashed lines define the boundaries of the claimed design and form no part thereof.