(re: Legality of Fan AGI/SCI games) Both the American copyright and trademark offices can be searched online by anyone. I remember doing this some time ago to find all things Sierra-related. Some of the things that came up were really interesting. For instance, it is possible to estimate the release dates on very old games by looking at the dates in the databases, and trivia stuff such that Sierra doesn’t own the Space Quest trademark can be discovered. I don’t recall seeing anything AGI or SCI-related though, but I’m not sure. I haven’t searched for patents, and I don’t know if you can do that online. I don’t remember the links to the search pages either, but they should be easy to look up if anyone is interested…
