After an estate has been opened under the Kansas simplified estates act and letters testamentary or letters of administration under this act have been issued, no further court supervision is necessary or required until the court orders the estate closed except:
When the time for the filing of claims has expired, the time in which an appeal may be taken from an order admitting or refusing to admit a will to probate has expired and six months from the date of decedent's death have expired, the court may order the estate closed as provided in K.S.A. 59-2247 and 59-2249, and amendments thereto.
K.S.A. 59-3205