Have valid H1b till Sept 2022, got lay off in Dec first week, considering options

[smurfette]

Hi there,

I got my H1b visa in Oct 2019, I got it stamped also, which is valid till Sept 2022. I got layed off on Dec 9, 2019. My employer has sent revoke to USCIS. I still don't have not found new employer.
I want to know in which I am not out of status:

1. If LCA has been filed before Feb 10
2. H1b is filed before Feb 10
3. Got receipt by Feb 10 but not started working till transfer is done
4. Got receipt and started working before Feb 10

Also, should my new employer know that my visa was revoked?

Thanks