Taco Bell filed a petiton to cancel Taco Tuesday trademark
The taco chain filed a petition Tuesday (naturally) with the US Patent and Trademark office to cancel the trademark, owned by rival Taco John’s for 34 years, because Taco Bell claims the commonly used phrase “should be freely available to all who make, sell, eat and celebrate tacos.”
情報源: Taco Bell is fighting to cancel the ‘Taco Tuesday’ trademark | CNN Business
Taco Tuesday’ trademark tiff flares anew between fast food competitors, 0:34 
'Taco Tuesday' trademark tiff flares anew between fast food competitors
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