The City of Chicago has settled a trademark infringement suit it filed against Fire Department Coffee, Inc. over the use of a logo that it claimed was deceptively and confusingly similar to the Chicago Fire Department logo. The city filed suit in federal court in January, 2020 alleging trademark infringement and unfair competition.
The United States Patent and Trademark Office had issued trademark registrations for both parties. Both involved a stylized overlaying of three letters, CFD (or FDC as the case may be).
Here are both trademarks:
By agreement of the parties, Fire Department Coffee will be transitioning to a new trademark.
Here is the original complaint: