https://www.gerbenlaw.com/trademarks/food-companies/coca-col...
Trademarks are all about context. Exxon used to have a cartoon tiger as a mascot who sometimes looked a bit like Tony the Tiger. This was usually fine because the contexts were pretty different, one was for foods and one was for gasoline, radically different product markets. However, once Exxon started using their cartoon tiger mascot to sell the foods in the TigerMart convenience stores Kellog sued them and won.
https://www.forbes.com/2000/10/17/1017forbes500.html?sh=6a04...
If I go to a restaurant and ask for "Coke" they're not going to get confused and grab me some coal. I'd be pretty confused to open a red 12oz can that says Coke on it and find it full of coal dust. Nobody is confusing these products.
