Hi, I would like to know what the difference is between having a copyright symbol (C) and a trademark symbol (TM) next to your business name and/or tagline. And sometimes you see the (R) symbol instead. If I wanted to come up with an original tagline or branding piece for my company, which of these do I need to have? Also, how concerned should I be that my tagline sounds like another, more established, company's tagline? Could I be sued if, for instance, I took someone else's phrase and replaced a few of the words with my own?