Well, there's $4 MILLION due the Series C Preferred shareholders. One can assume from the fact that the company knew about that and wasn't worried, the actual NEW DEBT they have just discovered is SUBSTANTIALLY MORE!
They didn't exactly "inherit" it though because there was no actual "reverse merger". They simply renamed the company and changed the ticker symbol. In effect, DSUS IS PVEC.
If a person changes his name and nickname, his debts do not simply vanish. If one could make debts go away via name change, there would be a lot more name changing going on and a lot fewer bankruptcies declared.