What is the difference between Obtain of EAD and Use of EAD?

I got the impression from this and some other forums that obtain EAD will not invalid H1b status, but only use of EAD will. But what is the difference of obtain and use?

In the case of OPT and H1b, approval of H1b automatically invaid OPT. This is not so in case of EAD?

Thanks!

所有跟帖： 

• 您申請了EAD -toosad- ♀ (123 bytes) () 03/15/2006 postreply 23:05:36

• 謝謝！回複：您申請了EAD -dmyb- ♂ (0 bytes) () 03/16/2006 postreply 00:53:32

• 任何用人單位開始都要求你填W-9表,這表讓你終止了 -radiology- ♂ (161 bytes) () 03/16/2006 postreply 07:32:11

• 回複：任何用人單位開始都要求你填W-9表,這表讓你終止了 -dmyb- ♂ (128 bytes) () 03/16/2006 postreply 17:20:17