Europes antitrust chief Joaquin Almunia said on Wednesday that he will not be able to wrap up a four-year investigation into Google before he leaves office at the end of next month. For sure this will not be concluded before the end of October, Almunia told a conference. Earlier this week, he said he would extract more concessions from the worlds most popular Internet search engine after extremely negative feedback from rivals such as Microsoft to Googles third proposal to end the EU probe. Dozens of rivals across Europe have accused Google of squeezing them out in online search results.