Quote Quoting wtr99s
If in 1983 a person had the right to expungement but during the course of completing the sentence other laws came into being limiting or prohibiting the expungment what law applies to the person.
If the person's record is expunged under the pre-1983 law, the expungement should stand. If the person does not obtain the expungement prior to the change in law, the new law would ordinarily govern any petition for expungement.

Quote Quoting wtr99s
Secondly, If a person is convicted for a felony in one state, Utah, and moves to another state, CT, and this person was 6 months away in Utah from completing all required parole obligations, and now in CT is being told that he will have to continue those obligations for life.
I'm not sure what you mean - I assume you're not stating that the person moved out of Utah in violation of the conditions of his parole. Any expungement or pardon would occur unter Utah law, which is where the conviction was entered.