[Havoc]

>4G actually means something, it's just not enforceable.

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...)

[sp332]

Trademarks are registered for specific classes of goods and services, and don't apply outside of that class. That's why Apple could have a computer called a Macintosh even though McIntosh was already a registered trademark for a kind of apple. Also why they could use the term "Apple" without infringing the Apple Corps record group's trademark - until they started selling iPods.