You need to take the paperwork to an attorney to review here.  This is not the forum since things really need to be read to help.  It is my understanding that judgement sin Oregon are good for 10 years.  But I see problems here since although the owners signed the note personally you may not have sued them and a judgement against a dissolved LLC could be an issue depending on where the LLC was incorporated.  For example, if it was a Delaware LLC the law there requires that you  resolve all outstanding judgements so they could not really get away with not paying.  And most states have laws that would "adopt" for lack of a better word - the law of the state in which the LLC was formed.  If there are assets still available is an issue and if you were properly "established" as a creditor at the time of dissolution is also an issue.  Good luck.