I feel the same way, getting a little anxious. My siblings both got theirs approved, recently (but they did get approved earlier last time around--sent at the same time). My expiration date is mid-January, so I am kind of worried since it is the holiday season, too. But, always remain optimistic everyone.
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Original EAD Expiration: 01/15/15
Application received: 8/27/14
Case Sent to Nebraska
Biometrics: 09/18/14
Approval: 12/5/14