能出國旅行 - 回複：I-485 Pending, 有H-1B 簽證，能不能出國旅行？

If you H-1 visa expired, you need to borrow I-797 approval notice from your employer so as to apply a new H-1 at consulate

http://blog.wenxuecity.com/blogview.php?date=200709&postID=6391