Honestly you should talk to a lawyer rather than getting an opinion here. Although before you do you should ask yourself: a. Do you feel like you are you in th

Honestly you should talk to a lawyer rather than getting an opinion here. Although before you do you should ask yourself: a. Do you feel like you are you in the right? Or are you using a name that belongs to someone else (even if they didn't register the domain) -- if the show was on the other foot how would you feel? b. Even if you are in the right do you want to take the time and expense to defend a pet project? This is what's known as an "opportunity cost".