I want to know can i use the word "iPhone4s" in my domain name. because i had purchased 2 domain one contains the word iPhone4s and other is iPhone5 but didn't developed site on them just want to know they have any copyright or trademark issue like facebook as we can't use facebook in our domain name the same thing can apply on iPhone4S and iPhone5 ???
Awaiting for reply from knowledgeable people. Thanks in Advance.