Google's pending acquisition of Motorola Mobility is arguably one of its most significant business moves this year, and the purchase has been in the works since August. However, it is currently subject to the approval of the European Union (EU), which just announced that it would delay delivering a final ruling on the matter.

According to BBC News, the EU had promised to rule definitively on the acquisition, which will cost Google $12.5 billion, by January 10. In its recent announcement, it delayed that decision until an unspecified date in the future due to a need for further information, as stated by Amelia Torres, a spokeswoman for the EU.

"The deadline is suspended because the commission needs from Google certain documents that are essential to its evaluation of the transaction," Torres told the news source.

If Google successfully completes this acquisition, it can freely use over 17,000 patents currently held by Motorola Mobility and accomplish its stated goals of safeguarding its Android mobile operating system from competitors in the smartphone and smartphone accessories market. However, the EU is capable of blocking the merger for as long as it deems necessary.

According to Bloomberg, the transaction has been officially stalled by the EU since December 6. Motorola nonetheless believes that the deal is likely to be complete sometime in 2012.