Petition revoked. Can I Use old PD to while file GC with new employer?

[pray4sai]

Hi Experts,

I am in I-140 and my Priority date is June 2010.I came to India as part of my family emergency and I was issued 221(G) .Since I have submitted all requested documents 4 months ago but no updates from US consulate. Since long time there is no response from US embassy, my contract was ended by client manager. In this pathetic situation, my employer also applied for withdraw my petition because client does not support my case.

However, here is my question, Incase if I file a petition thru new company and it got approved in 2012 CAP, Can I use old employer priority date while new comany applies for filing Green card? Could you please help me how it works?

Your help is really appreciated!

Thanks!