trade marks can be anywhere from $375 doing it on your own, to $400-700 using a trademark lawyer (what i use and suggest). i only say to trademark because if someone else does trade mark the name you are using they can make you change it or worse sue you for trademark infringement. it's not an end of the world thing, but if your business blew up and someone made you change your name it would really stink. the only reason i use a lawyer is because he automatically renews it yearly and takes care of the legal mumbo jumbo i can't figure out. hope that helps, good luck either way and happy baking!!!