Sec. 45a-437. Intestate succession. Distribution to spouse.
(a) If there is no will, or if any part of the property, real or personal, legally or equitably owned by the decedent at the time of his or her death, is not effectively disposed of by the will or codicil of the decedent, the portion of the intestate estate of the decedent, determined after payment of any support allowance from principal pursuant to section 45a-320, which the surviving spouse shall take is:
(1) If there is no surviving issue or parent of the decedent, the entire intestate estate absolutely;

(2) If there is no surviving issue of the decedent but the decedent is survived by a parent or parents, the first one hundred thousand dollars plus three-quarters of the balance of the intestate estate absolutely;

Sec. 45a-439. (Formerly Sec. 45-276). Distribution when there are no children or representatives of them.
(a) (1) If there are no children or any legal representatives of them, then, after the portion of the husband or wife, if any, is distributed or set out, the residue of the estate shall be distributed equally to the parent or parents of the intestate, provided no parent who has abandoned a minor child and continued such abandonment until the time of death of such child, shall be entitled to share in the estate of such child or be deemed a parent for the purposes of subdivisions (2) to (4), inclusive, of this subsection.

(2) If there is no parent, the residue of the estate shall be distributed equally to the brothers and sisters of the intestate and those who legally represent them.

(3) If there is no parent or brothers and sisters or those who legally represent them, the residue of the estate shall be distributed equally to the next of kin in equal degree. No representatives shall be admitted among collaterals after the representatives of brothers and sisters.

(4) If there is no next of kin, then the residue of the estate shall be distributed equally to the stepchildren and those who legally represent them.

(b) When any will executed prior to January 1, 1902, fails for any reason to dispose of the whole or any part of the estate of the testator, and such estate becomes intestate, the same shall be distributed in accordance with the statutes of distribution in force at the time such will was executed.

(c) Real property subject to the life use of husband or wife, remaining undivided at the expiration of such life use, shall be distributed in the same manner by the same or other distributors, or the same may be distributed during the continuance of such life interest and subject thereto.

(d) In ascertaining the next of kin in all cases, the rule of the civil law shall be used.

(e) Relatives of the half blood shall take the same share under this section that they would take if they were of the whole blood.

Sec. 45a-452. (Formerly Sec. 45-287b). When property escheats to the state.
Procedure. When a probate court cannot identify or locate the person entitled to a distribution of property from an estate or trust being administered by it, or when a probate court determines that no person is entitled to any property on hand for distribution, the probate court shall order distribution of such property to the State Treasurer as abandoned property in accordance with the provisions of part III of chapter 32. A probate court shall cause reasonable efforts to be made to identify and locate the person entitled to the property for distribution before ordering distribution as abandoned property. Nothing in this section shall prevent a court of probate from approving an agreement pursuant to section 45a-434 provided all undetermined or missing distributees are represented by counsel and any such agreement is signed by such counsel.