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The Boston Globe

Business

Dunkin’ Donuts loses best coffee trademark bid

Dunkin’ Donuts won’t be able to claim exclusive­ rights to the phrase “Best Coffee in America.”

The Patent and Trademark Office has tentatively rejected the Canton-based chain’s efforts to trademark the slogan, saying it is not distinctive enough to qualify for protection. The slogan “is merely laudatory and descriptive,” the agency ruled recently.

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