My parents are visiting me from India, on visitors visa. They entered the US on May 12th 2009, and their departure date on their I 94 is Nov 12, 2009. I applied for an extension of their stay till March 30th 2010 on Sept 21st 2009 using I539. The approximate processing time is 2.5 months. Which means I wont hear from the USCIS till early December. How long can my parents stay in the US until we hear one way or the other from the USCIS without jeapordising their status?