It could also be the same case as Kleenex, Xerox, and almost Google. They loose their specific trademarked meaning if they enter the lexicon as common usage. One example: Let me go and Xerox that for all of us. Xerox = copy or Quick, get me a Kleenex, I’m going to sneeze. Kleenex = facial tissue Let me just google that. Google = look up on the internet All of them have either lost their trademark or are about to lose their trademark because they have entered the common lexicon as a name or action.