Patent ID: 7798156

Claim:
A toothbrush capable of transitioning between a flat credit card shape and a three dimensional toothbrush shape, comprising: four handle sections, each handle section foldably joined to an adjacent handle section by a respective line of weakness, and each handle section including a handle region and a bristle region attached to a back support (bristle region back support) that is an extension of the handle and joins with the handle to form a straight edge with said handle region; and four bristle rows, each bristle row extending from the bristle region of a respective handle section; wherein the toothbrush is foldable between (i) a flat mode in which an outer periphery of the toothbrush includes three uninterrupted peripheral sides formed by the sides of the handle sections that do not have bristle regions and the bristle region back supports; said bristles being arranged in two sets of bristle pairs, wherein each member of a bristle pair faces the other member of a bristle pair without a substantial gap; said handles on the outer sides of the toothbrush being positioned so that the bristle region back support faces outwards, and the bristles attached to the bristle region backs face inwards; said toothbrush having the approximate size and shape of a credit card when flat, and (ii) a folded three dimensional toothbrush mode in which the four handle sections and bristle region back supports are folded against one another to form a brush handle and the plurality of bristle rows align and extend in one direction to form a brush head.