Chex is a brand of breakfast cereal, introduced in 1937 and currently manufactured by General Mills. It was originally owned by Ralston Purina, and the Chex name reflects the 'checkerboard square' logo of Ralston Purina. The product line was part of the spinoff of the Ralston portion of Ralston Purina into Ralcorp in 1994. The product line was sold to General Mills in 1997. For many years, advertisements for the cereal featured the characters from Charles Schulz's Peanuts comic strip.
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