Status of my Previous I140

[Ricky5326]

Hi Guys,
My I140 is approved with my previous employer and is not revoked yet. It's been approved since more than a year. I left my previous employer after 1 month of my I140 is approval.

 

Questions..

1.Is that i140 still valid even though it was not revoked by my previous employer?

2. Can I use that I140 for my H1b extension beyond 6 years?

3. Will the old priority date used for new I140?

 

Appreciate your help

Thanks,
Rohit