A trademark for the Dunkin’ Donuts logo is already registered for the trademarked word ‘Dunkin’, but a trademark application for the word ‘Donut’ is yet to be lodged.
The Dunkin donut logo, also known as the ‘Doom’ logo, was introduced by the company in 1987 as an alternate name for the popular donut.
The name ‘Doon’, also used by the Dunkin’ Donkey, was later changed to the Dunk and Donut.