In July, a U.S. federal judge ruled that Apple violated antitrust laws by collaborating with major publishers to set artificially high e-book prices and knock out competition. Intended to be a means of "breaking Amazon's monopolistic grip on the publishing industry," Apple's actions were labeled a conspiracy by Judge Denise Cote.

Now it turns out Apple won't be paying the cost without a fight. CNET reports that the company has filed to appeal the decision, which—if upheld—would require some drastic changes in how Apple does business in the e-book sphere: 

A "notice of appeal" document was filed by Apple attorney Orin Snyder Thursday to the United States Court of Appeals for the Second Circuit, and it posted in a public electronic records system Friday. The appeal seeks to overturn Judge Denise Cote's ruling in the Southern District of New York, as well as an injunction that requires Apple to modify its agreements with book publishers and hire an external monitor for two years.

The appeal isn't such a surprise, since Apple already filed a letter to Cote in August, revealing just the arguments that it plans to make; among others, it claims the court "disregarded serious credibility issues with the Google and Amazon witnesses." (Indeed, we noted that Amazon, perhaps, is the true victor in the ruling.)

But it does indicate that the case could drag on for months or more, since, as Gigaom points out, Apple doesn't have to file its formal arguments until next year. In the meantime, Simon & Schuster is appealing the injunction on its own.