How to get status of I-140?
You can check "case status" online at www.uscis.gov
If an approval notice has been lost, the petitioner can request a duplicate approval notice via form I-824.
Unless you are a self-petitioner, I-140 notices go to the employer. Check with petitioning employer.
Unless you are a self-petitioner, you are not an affected party for FOIA purposes (or appeals or motions on a petition).
I-140 Copy request through G-639 FOIA