They didn't trademark everything back then. Now someone farts and they put a TM after it. Even Miller Lite says 'A Fine Pilsner Beer' on the label. It is a crime.
I have only been there a few times. It's open until late, and it depends on the night what's going on. It's a bit like San Francisco, Amsterdam, but way less sleazy. However, I once did see a travestite dance show there, and the clientele is definitely tourist free.