回复：回复：my 140/485 was approved in 1

Application Type: I485, Application to Register Permanent Residence or to Adjust Status
Current Status:
This case has been approved. On July 15, 2004, an approval notice was mailed.

这是我在移民局网上查到的我的申请情况，哪位朋友可以告诉我，我大概什么时候可以拿到书面的通知，其次是，我还要准备什么材料吗？接下去我该需要作什么？不胜感激！