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

來源: 於 2009-01-02 12:49:10 [舊帖] [給我悄悄話] 本文已被閱讀：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!