Apple infringed a Samsung Electronics patent, the U.S. International Trade Commission said in a final judgment released today that bans import into the U.S. of certain AT&T iPhone and iPad models: the iPhone 3G (which is no longer sold), 3G S, and 4, and the cellular versions of the first-gen iPad (also no longer sold) and iPad 2. Apple has said it would appeal the decision in federal court. Later versions of the iPhone (the 4S and 5) and iPad (third- and fourth-gen, and Mini) are unaffected by the ruling.