99XXX首次OPT申请时间轴

诸位好，好久不发帖了回馈一个时间轴：
Feb 5th case was received (updated on Feb 9th)
April 13th producing card
寄出来会再来更新。
这个是在 myaccount.uscis.dhs.gov 注册之后查到的，另外一个查询地址还是case was received。

补充内容 (2018-4-18 23:07):
april 17th we approved your case. (updated on April 18th 6:34am)

补充内容 (2018-4-19 23:29):
April 18th mailed (updated on April 19th)

补充内容 (2018-4-21 03:11):
April 20th 收到卡