My time line. Considering other DO, Chicago seems to be slower
Day 0: 12/10/2009 : N-400 fedexed to Phoenix
Day 1: 12/11/2009 : Priority Date
Day 9: 12/19/2009 : NOA Received
Day14: 12/24/2009: LUD change. RFE sent (FP)
Day40: 1/20/2010 : FP scheduled and done
Day41: 1/21/2010: Yelow letter recieved
Day60: 2/10/2010: Transfered to local office for interview
Day118:4/8/2010: Interview Date
xx/xx/2010 : Oath Letter
xx/xx/2010 : Oath Date
Day 0: 12/10/2009 : N-400 fedexed to Phoenix
Day 1: 12/11/2009 : Priority Date
Day 9: 12/19/2009 : NOA Received
Day14: 12/24/2009: LUD change. RFE sent (FP)
Day40: 1/20/2010 : FP scheduled and done
Day41: 1/21/2010: Yelow letter recieved
Day60: 2/10/2010: Transfered to local office for interview
Day118:4/8/2010: Interview Date
xx/xx/2010 : Oath Letter
xx/xx/2010 : Oath Date