I came to the u.s on May 24,2002 on a H4 visa and then got an admission to a school for my ph.d, my admission letter (with assistanship) is dated June 3, 2002 and my I-20 is dated June 7,2002.
I applied for change of status (from H4 to F1-status) within 30 days, in fact the INS receipt date...