I have an interesting question on Trademark Law for all of you. I've done a search through the archives of this forum, and not come to a satisfactory answer. The closest thread I've found is
this one, but the topic is never explored in detail.
Since many of the questions appear to be unanswerable without details, I'll be pulling a real world example out for discussion. I realize that what is said here is not legal advice, and may not pertain to other circumstances. At the moment, I am merely asking out of curiousity. I realize that I should contact a real lawyer should I ever chose to follow this (probably unwise) course of action.
With that out of the way, my question is this: What sort of trademark protection can modern companies expect on classic games for which they've abandoned the trademark? Can a "clone" of a video game successfully reuse the mark, despite similarities to the original?
Copyright alone
can be an issue. For the purposes of this discussion, though, I would like to assume that the "clone" is a from-scratch rewrite that falls under the US Copyrights protections that
...the idea for a game is not protected by copyright.The specific example I'm going to cite is a game from the 1980's produced by Sierra Entertainment. It was called
Crossfire. While it was popular for its time, it is not well known, even among classic gaming enthusiasts. The USPTO
cancelled the Trademark in 1991 and now lists it as dead. A search of Sierra's homepage shows no results for the game. Even a Google search for the game shows no activity in over a decade, save for a few classic gaming catalogs that track the existance (and sometimes illegal disk images) of the original titles.
Basically, this mark is about as dead as it gets. You'd need a time machine to erase it from history to make it any deader.

With that in mind, the law would seem to indicate that the use of the mark is acceptable. However, let's hypothesize that Sierra is anal retentive about their old titles (which I've heard that they are) and wouldn't appreciate a new version of Crossfire being released. So they send a C&D, and are willing to take the matter to court.
I'm curious how you readers out there would rate their chances. Do you think they'd have a case, or are they simply out of luck for failing to maintain the brand? If you feel they have a case, on what grounds do you feel that is so? If not, would it change anything if Sierra were to argue that they had plans to revive the mark? Even if such plans are not evident at the point of the alleged infringement?
Again, this is currently just curiousity on my part. So this can all be speculated as a hypothetical case based on real facts.
Thanks!