I did not check the pd status of Angel. I will move it to the suspect folder until status is approved by jcolag or Aussie.
In case my Private Message went awry somehow, and so any interested parties can file the information as they like, I found an Angel series that appears to have run in about the same years with the same issue numbers (most notably starting with issue #2), renewed, but by the Chicago Sun-Times Syndicate. Assuming there weren't two books that were so similar, then the syndicate currently owns the Angel copyrights and they're not public domain.
To my limited knowledge, they're not directly related to Dell, but if they're the same series, it could indicate a corporate connection or a character license.
On the other hand, if someone knows anything about two books with similar profiles on the market, that would probably mean that the series is in the public domain and I found something unrelated.
Clear as mud, as they say.