The ornamental design for inflatable seating furniture, as shown and described.
FIG. 1 is a right front isometric view of the new design for inflatable seating furniture.
FIG. 2 is the left side view of FIG. 1.
FIG. 3 is a front side view of FIG. 1.
FIG. 4 is a right side view of FIG. 1 and FIG. 7.
FIG. 5 is a back side view of FIG. 1
FIG. 6 is a top side view of FIG. 1.
FIG. 7 is a right front side isometric view of the furniture of FIG. 1 included with additional units to make a larger seating arrangement, the base of all of the unclaimed elements are identical to the furniture of FIG. 1 other than the back cushion and the number of curved support elements, it being understood that all other surfaces are the same as the other views of this embodiment.
FIG. 8 is a front side view of FIG. 7.
FIG. 9 is a back side view of FIG. 7; and,
FIG. 10 is a top side view if FIG. 7.
The features shown in broken lines in the drawing depict environmental subject matter and unclaimed boarders and form no part of the claimed design. Other than the section disclaimed by the broken lines and unclaimed borders, it is to be understood that all other surfaces are the same in all embodiments.