Parents left US while B2 extension pending, any action needed?

来源: 于 2009-01-02 12:49:10 [旧帖] [给我悄悄话] 本文已被阅读：次

My parents left US over a month ago, but their I539 for B2 extension to 01/03/09 is still pending. Do we need to inform USCIS their departure or just don't do anything? Thank you very much!