H1-B transfer with just the I-140 receipt No.

[mchguy]

Hello

I am working with Company A on H1 with a 6th year max out of Mar 2014. My I-140 (under EB-3) is approved and I just have the receipt no. of it. My company wont provide me a copy of my I-140.

If I switch to company B now, will my H1 with company B have an end date of Mar 2014 (my current max out date) or can they use my I-140's receipt no. and get a 3 yrs validity?

Also, can company B use my current I-140 receipt no to retain my PD while for GC?

Thanks in advance.