请教H1-B延期需要提前多久办？

所有跟帖： 

• In my case, it took 4 months. -doshexh- ♀ (0 bytes) () 07/28/2008 postreply 17:47:08

• maximum 6 months. -fanfan88- ♀ (0 bytes) () 07/28/2008 postreply 18:10:19

• my attorney told me as long as you renew before it expires -tuzhirong- ♀ (74 bytes) () 07/29/2008 postreply 07:34:57

• 240 days since receipt date? -rizhao- ♂ (0 bytes) () 07/29/2008 postreply 09:19:56

• yes -tuzhirong- ♀ (0 bytes) () 07/29/2008 postreply 09:51:54