Not exactly... February 1st was initially the date provided to EFL by Derby's administrators as the date they believe they will run out of cash, which is why this was made the deadline to prove proof of funds. That was supposed to be proof of funding the rest of the season, but they have managed to provide proof of funding for a further month, which is why the deadline has now been extended by 1 month.
IMO Derby certainly won't face liquidation, they have interested bidders, in particular Mike Ashley, who will step in as late as possible to get the very best price for the club, in the hope the Wycombe/Mboro claims have gone by that point. This could lead to Derby losing their EFL status like Bury, but without the club necessarily winding up. It will then be a case of reapplying to enter at an appropriate point. That's my expectation anyway, although as we know, anything can happen...