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Two marketing firms embroiled in a patent dispute about designs for the paperboard cars included with children's dinners at Steak 'n Shake are finalizing a settlement.
Kid Stuff Marketing in Topeka accused Overland Park-based Creative Consumer Concepts Inc. (C3) of infringing on patents for paperboard car designs such as "Land Spy Cruiser,""Sea Spy Sub Car,""Space Spy Rocket Car,""Ketchup Car,""Pickle Car" and "Mustard Car."
Kid Stuff Marketing (KSM) originally held the contract, designing…