This post is part of a series on some of the most memorable companies that have disappeared.

It's hard to believe these days, but at one time Burger Chef was the number two fast-food burger chain in the United States, second only to McDonald's (NYSE: MCD). Its easy to forget as well that Burger Chef pioneered many of the things that its rivals became known for, including flame-broiled burgers, value combo meals, and a works bar that allowed customers to dress burgers their way.

Burger Chef had cartoon mascots, including the Burger Chef (voiced by Paul Winchell) and his sidekick Jeff, Count Fangburger, Burgerilla, Cackleburger and others. In the early 1970s, the company also offered a "Funmeal" with specially printed packaging and accompanying toys or puzzles. Burger Chef sued McDonald's after it introduced the Happy Meal in 1978, but ultimately lost.

Burger Chef offered a fish sandwich and fried apple or cherry pies. Some locations offered tale-side service, and others had windows that allowed customers to watch sandwiches being made. Burger Chef was also an early adopter of the media tie-in, with the Batman television series and the original Star Wars movie in the 1970s.