You must be right. The company did crash few years back, but was acquired by "Bike Technology & Public Relations" in 2002. I don't know who owns them now, but the stock still appears to be traded and bikes are still advertised:
http://www.czechbike.cz/akce.htm. It is now advertising non-competition city, track, children's and similar such bikes. In my pasts visits in the Czech Republic, I didn't see any of these new bikes, just few remaining old racers. These new ones are certainly not the prestige brand of my youth.