The colors red, blue, black and white are claimed for the mark. The mark consists of a repeated plaid pattern of rectangles and squares in shades of these colors. Many have singular and double horizontal and vertical lines running through them. One row will consist of rectangles and square in different shades of red with singular red lines and double blue lines passing through them horizontally. Vertically a pair of blue lines also passes through. Below this row are two rows of rectangles and squares in shades of blue which have the same horizontal red and blue lines passing through them. Small black squares appear in the corners of some of these larger blue squares. The next two rows below include white, blue and red rectangles and squares with the same horizontal and vertical lines running through them. The next two rows below repeat the above two rows in blue. The next row repeats the above in red.. And so on.