This spring, Aritzia applied to register the trademark ARITZIA DUPE for use on various types of bags. https://www.thefashionlaw.com/aritzia-argues-that-dupe-isnt-just-a-descriptive-term/
What is Behind Aritzia’s Bid to Register a "DUPE" Trademark?

When Aritzia applied to register the trademark ARITZIA DUPE, the U.S. Patent and Trademark Office (“USPTO”) was not convinced.

The Fashion Law