Русско-англо-русский юридический словарь

In that context, in my opinion, the expression "contingent creditor" means a creditor in respect of a debt which will only become due in an event which may or may not occur; and a "prospective creditor" is a creditor in respect of a debt which will certainly become due in the future, either on some date which has been already determined or on some date determinable by reference to future events. (Wikipedia)