Patent ID: 8267473

Claim:
A plastic booster seat apparatus for a child, comprising: a) a plastic base to support the plastic booster seat apparatus relative to an environmental surface, with the plastic base having at least three points defining a plane that lies generally level with said environmental surface; b) a plastic back for the back of the child and comprising a lumbar support; c) a plastic seat for the buttocks of the child, wherein said plastic seat comprises: i) a front portion that confronts an inner knee of the child, a rear portion that confronts said plastic back, a right portion, and a left portion; ii) a safety bump between the front and rear portions and between the left and right portions, with said safety bump comprising a rise projecting upwardly from said front, rear, right and left portions, and with said safety bump confronting said front portion of said plastic seat; iii) wherein the front portion is disposed at a greater distance from said plane than said rear portion such that said right, left and rear portions angle rearwardly and downwardly such that gravity tends to draw the buttocks of the child rearwardly away from the safety bump and such that gravity tends to draw the back of the child against the lumbar support and thereby retain the child safely in the plastic booster seat; and d) wherein said plastic back has a height and a width, wherein said lumbar support has a height, a width, and a depth, wherein the height of the lumbar support is less than the height of said plastic back, and wherein the width of the lumbar support is less than the width of the plastic back.