The ornamental design for a fanblade, as shown and described.
FIG. 1 is a perspective view from below of a fan blade in accordance with my design;
FIG. 2 is an enlarged bottom plan view of the fan blade in accordance with my design;
FIG. 3 is an enlarged side elevation view of the fan blade in accordance with my design, the opposite view being a mirror image of that shown;
FIG. 4 is an enlarged top plan view of the fan blade in accordance with my design;
FIG. 5 is an enlarged front elevation view of the fan blade in accordance with my design; and,
FIG. 6 is an enlarged back elevation view of the fan blade in accordance with my design.
The broken line showing of the canopy, support rod, blades, blade irons, and light fixture is included for the purpose of illustrating environmental structure and forms no part of the claimed design.