Take this as a suggestion:
Not sure but if i understand correctly, it's 30 days (after last day of your job) to find a new job and then transfer(file h1b) with that employer.
Regarding h1b revocation , even if your employer sends notice to USCIS to revoke your h1b, it 'll take a time. So don't worry about that part for the time being.
Your only focus should be on finding a new employer who can file(transfer) h1b for you.
DON'T PANIC. focus on finding new job and employer.

check out the TPS thing too.
good luck