Re: Tetris trademark

[Lennart Borgman (gmail)]

Chris Moore wrote:
> Richard Stallman <address@hidden> writes:
>
> >     Is anybody concerned that lisp/play/tetris.el might be a trademark
> >     infringement?
> >
> > File names and function names usually do not raise a trademark issue.
> > So there is no need to worry about this.
>
> But what about the game itself?  It's not just the name of the file
> and functions, but the Tetris game itself is "subject to the
> registered copyrights of Tetris Holding LLC" (according to
> http://www.tetris.com/).


I think there are some useful notes about this on

  http://en.wikipedia.org/wiki/Tetris#History

See the end of the History section. It seems like you can not copyright 
a game, but I do not understand the details there.