The ornamental design for an infanttravelchair, as shown and described.
FIG. 1 is a front perspective view of a infant travel chair as depicted in use with an infant and chair;
FIG. 2 is a front elevational view of an infant travel chair showing the design, the infant travel chair shown in an alternate position than that shown in FIG. 1;
FIG. 3 is a rear elevational view from the top thereof;
FIG. 4 is a top plan view as depicted in use with an infant and chair;
FIG. 5 is a left rear elevational view as depicted in use with a chair in the untied position; and,
FIG. 6 is a rear elevational plan as depicted in use with a chair in the tied position.
The broken lines shown in the drawings are understood to represent stitching. The dash-dot lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. The cross-hatched areas are understood to encompass the entire associated area.