MINYANVILLE ORIGINAL After having opened higher blue-chip stocks fell back into the red in mid-Tuesday trading as investors processed the news that Spain was ready to formally request a bailout.   The Dow Jones Industrial Average (INDEXDJX:.DJI) was down 0.56% to 13 439.20 points as of 11:59 a.m. EDT with only five of the 30 Dow components having registered gains.   Though Google (NASDAQ:GOOG) officially surpassed Microsoft (NASDAQ:MSFT) in market cap for the first time today shares of the latter still rose marginally to $29.54 (+0.16%).   DuPont (NYSE:DD) lead all decliners falling 1.58% to $49.56 as Wells Fargo ...