There isn't a design there that's being copied or a brand being appropriated. I mean however many centuries back someone figured out cheddar cheese, but nobody alive has a proprietary claim to it.
I don't think copyrights/patents/whatever apply, but if you think of the principles behind them as a bit of a guide, designing a novel product should ideally let you profit off it exclusively for a while (to incentivize invention), but probably not forever (to allow competition and lower prices).