换雇主问题，双飞的485满180天，但140批准不满180天。

如题，如果原雇主撤回140，是不是485也就作废了？

没人回复，我自己查了下，其实USCIS 140官网上有详细解释

https://www.uscis.gov/forms/all-...n-for-alien-workers


Motions and Appeals

If you are the beneficiary of a Form I-140, you usually cannot appeal or file a motion about the decision we make on your Form I-140. You also will not receive notices about these proceedings. However, there is an exception. You may receive notices and be able to file a motion or appeal in revocation proceedings if you meet the following requirements:

You had an approved Form I-140 that we later revoked or initiative revocation proceedings;
You filed Form I-485 based on a valid Form I-140, and that Form I-485 has been pending for 180 days or more;
You submitted Form I-485 Supplement J after Jan. 17, 2017, to request job portability or submitted a portability request before Jan. 17, 2017, via a written letter or other acceptable form of communication; and
We approved the portability request.
If you meet the requirements above, you may provide evidence in response to a Notice of Intent to Revoke a previously approved Form I-140. If we revoke the approval of your Form I-140, you may also file an appeal or motion using Form I-290B, Notice of Appeal or Motion. Please see our Form I-290B page for filing instructions.      
     

Withdrawing Form I-140

The petitioner may request to withdraw a Form I-140 at any time. However, if the petitioner requests to withdraw a Form I-140 that has already been approved for at least 180 days, or if an associated Form I-485 has been pending for at least 180 days, we will not revoke the approved Form I-140 and the beneficiary will retain the priority date from the Form I-140.

We will consider the job offer withdrawn, but the Form I -140 will remain approved for purposes of INA 204(j) portability unless we revoke it on other grounds. See 8 CFR 205.1(a)(3)(iii)(C) (revised effective Jan. 17, 2017).

To become a lawful permanent resident based on the continued approval of this Form I-140, the beneficiary must either obtain a new job offer under INA 204(j) or have a new Form I-140 petition filed on their behalf.

所以只要485 180天 和140批准，换雇主不影响