According to the lawsuit, the defendants registered the Dunder Mifflin name with the U.S. Patent and Trademark Office about six years ago in order to market hoodies, shirts, jackets and other apparel.

Quill.com is a real-life office-products provider that partnered with NBCUniversal's consumer products unit in 2011 to offer paper branded Dunder Mifflin -- the fictional Scranton, PA-based paper ...