hedwards: IANAL, but FWIW, this should be pretty reliable.
It's definitely grey area no matter how much folks would believe otherwise. This is why non-lawyers are usually best not making such declarations. A failure to enforce ones rights over the course of years is something that's likely to come up as a defense. So, somebody may well still own the rights, but if they're failing to enforce their rights, they may well put themselves in a position where they can't enforce them if they change their minds.
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Same basic idea here, you can't let people violate the agreement over many years in order to boost the size of the violation so as to get a larger award out of a lawsuit.
amok: Not sure if you you are confusing it with trademarks here, not copyright and rights ownership. The later has very clear laws and regulations (depending on countries, off course) . The laws on copyright are quite clear, and there is no room for any such grey areas.
But as with all copyright infringements, it requires the rights holders to act on it, it is not an automatic process. But even if the rights holders do not prosecute the right infringements, it does not make it a 'grey area'
Nope, you completely lose trademark ownership if you don't enforce it. With copyright, it's like any other agreement you might have, if you're not enforcing your rights you may or may not get anything in court. But, you don't lose the right to enforce it in the future. You just might have to go through a period where you put the games back into a store or do something else to let people know that you do still own the rights.
This is where it gets rather complicated and why an attorney would have to be involved. Failing to enforce your rights would give people the idea that you weren't going to enforce them in the future which may or may not be a defense to the infringement. It certainly would make it more likely for the judge and jury to side with the defendant on the matter.
In most cases it would probably be one of a number of defenses that the defense would attempt to use and the age of the game would likely come into play.
Anyways, my point here is that it's not the black and white issue that some people imagine it to be. If somebody buys the rights to the games and decides to start sueing people for infringing, I'd imagine they'd have some success even if the previous owner wasn't enforcing it.
hedwards: I think this is the 2nd best case scenario behind having works enter the public domain the way that they're supposed to.
Navagon: Maybe if international copyright law was amended to threaten entry into the pubic domain of all copyrighted material for which there is no clear ownership after a certain period of legal limbo? That would either force would-be rights holders to either state their case, buy the others' stake(s) or where that's not worth bothering with, let it slip through the net and into the public domain.
But then that would benefit the end user and that's not the direction copyright law has been taking for the past two decades.
In may jurisdictions we already had that. In the US up until, I think 1976, you got an automatic 28 years of protection which could be extended beyond that for another term if you applied for it. That was the law in the US for the previous 200 years with changes mainly to the duration of protection available.
The really fucked up thing about the change to a blanket extension was that only a minority of owners ever applied for the extension. Probably 80% or so of the owners didn't bother. Which isn't surprising, most novels stop selling much after the first couple years, assuming you can even buy them after that. So, they don't benefit at all from the extensions.