Posteffective Period？？

posteffective period—The period of time that begins when the registration statement becomes effective and runs until the issuer either sells all of the offered securities or withdraws them from sale.

还有一些定义，请参考：
http://myphliputil.pearsoncmg.com/student/bp_cheeseman_blaw_5/lec_38.html

失效期。

Posteffective Period。

实效期

失效期