The statute of limitations is a civil code. Each state has its own statute, For instance, The code section in Cal. Code of Civil Procedure 337 . After that time, it has expired.
Statute is a law.
Passed by legislation and varies by state. The original statute of limitations begins at the onset of the contract signing. Statute of limitations vary from state to state but it is usually 4-6 years depending on the state. The term statute of limitations means the time allotted to legally enforce the debt. If you say nothing or do not bring up the expired statute then the judgment can be entered.