USCIS Case Status Online
Check your case status online using these two options! You will need the  I-797C receipt number of the case for each option. The receipt number can be found in the upper left-hand corner of the receipt notice and in the receipt email you received from IFSS.
  1. Case Status Online at http://www.uscis.gov (look under Tools)
  2. Set up a MyUSCIS account here: https://my.uscis.gov/