A Philadelphia delicatessen has sued the U.S. Patent and Trademark Office over an apostrophe, insisting that its "Philadelphia's Cheesesteak" is "so superlative" so "gloriously gluttonous," it could not possibly be confused with the generic "Philadelphia Cheesesteak."
Campo's Deli at Market sued U.S. Patent and Trademark Officer Director David Kappos in Philadelphia Federal Court.
Source: Courthouse News. Read full article. (link)