Same with me - I am under 245i, I'm geting a Masters in the Sciences, and all these companies come to my school with summer internships or co-ops, but you can only apply for them if you can work legally in the US (because they are all paid positions), which doesn't even allow for a chance for the employers to get to know me and possibly sponsor me.
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Initial Approval: 11/13/12
1st Renewal: 10-7-14
2nd Renewal: 10/12/16
3rd Renewal: 5/16/2018