Apple alerts Supreme Court of plans to appeal electronic books antitrust rulings against it

Apple has signaled it will ask the Supreme Court to hear its claims that lower courts erred in finding it colluded with publishers to raise electronic book prices in 2010.

The Cupertino, California-based company asked the high court in papers made public Thursday for a 30-day extension to formally ask the court to hear its appeal. Otherwise, the papers were due Sept. 28.

Apple told the Supreme Court it believes several Manhattan judges wrongly interpreted the law pertaining to a "disruptive entry by dynamic companies into new or stagnant markets."

Apple said its actions were justified when it entered the e-book market in January 2010 with the launch of the iPad and iBookstore.

A message seeking comment from the Justice Department was not immediately returned.