Portable travel toothbrush

FIG. 1 is a three-quarter perspective view of a portable travel toothbrush which embodies the design;

FIG. 2 is a right side elevation view of a portable travel toothbrush of FIG. 1, the item shown in broken lines attached to the end of the portable travel toothbrush reflects a tube of toothpaste used in conjunction with the portable travel toothbrush and is depicted for illustrative purposes only and forms no part of the claimed design;

FIG. 3 is a left side elevation view of a portable travel toothbrush of FIG. 1;

FIG. 4 is a top plan view of a portable travel toothbrush of FIG. 1;

FIG. 5 is a bottom plan view of a portable travel toothbrush of FIG. 1

FIG. 6 is a right end view of a portable travel toothbrush of FIG. 1; and,

FIG. 7 is a left end view of a portable travel toothbrush of FIG. 1.