If it gets approved they have status until 3/30/2010. If denied they fall out of status starting 11/13/09.
SARMIENTO IMMIGRATION LAW FIRM
5005 Rockside Road, Ste. 600
Cleveland Ohio 44131
Your parents will receive a decision from USCIS either approving or denying the application. Your parents may remain in the U.S. lawfully while their application for an extension of stay (I-539) remains pending, even if this is beyond the expiration of their I-94 cards.