So? Its still entirely dead. More than that...they falsely claimed 4G and made millions off it. Yes its still means something from a technical point of view, but the concept in its true form is dead to the world - though very profitable.
>the trademark was not acquired in time
How do you propose trademarking a two character term that refers to a multiple of the gravitational constant? (It doesn't but in a courtroom many things are possible...)