Back in the early 1970s, many Dunkin' locations made donuts in-house. When making the donuts' signature ring shape, a hole is punched in the center, resulting in a small ball of dough left over.

Dunkin’ is suing a vape company for trademark infringement over its Vapin’ Donuts product line which uses a logo similar to Dunkin’s iconic logo. – U.S. Federal Court. Dunkin’ alleges in ...