You can find trademark signs on the packaging of any Star Trek merchandise these days featuring the name "U.S.S Enterprise." Readers of Star Trek novels will notice it on the back covers of recent books featuring the full name too. It's also on the front cover of the Star Trek: TNG Technical Manual, which detailed the Enterprise-D.Yeah, I'd love to CBS try to actually enforce that trademark claim... Not likely...Not unless they plan to reboot it with a starship other than the Enterprise, anyway. The term "U.S.S. Enterprise" is a registered trademark of CBS now (earlier, it belonged to Paramount for a number of years).
Apparently the U.S. Navy was allowed to continue using the name.
Seriously.
If you look real hard at the fantail of the USS Enterprise CVN-65. You can see a tiny "TM" after the last "e". Tiny as in 12 inch letters.
There was a story that when the trademark belonged to Paramount, they tried to sue the U.S. Navy for selling any merchandise named "U.S.S. Enterprise," but backed down when they realized a fight with the Navy could result in an injunction of the name being used by Paramount while the case was pending.
http://wemakezines.ning.com/forum/topics/paramount-pictures-tried-to