Sun Drop was developed in Missouri, by Charles Lazier, a salesman of beverage concentrates. While riding around town in the family car, Lazier quickly scribbled a recipe for a new soft drink on a small piece of paper which he handed to his son, Charles Jr. The younger Lazier worked as a lab technician at his father’s plant, and soon began work on the formula. Two years later, Sun Drop Cola debuted at the American Bottlers of Carbonated Beverages Conference in Washington, D.C. The Sun Drop formula was patented on April 15, 1930.