Oregon Revised Statutes Probate Law § 114.610

(a) Filing a petition for the appointment of a personal representative for the estate of the deceased spouse, and a motion for the exercise of the election as described in paragraph (b) of this subsection, within nine months after the spouse dies.

(b) Filing a motion for the exercise of the election in a probate proceeding commenced for the estate of the deceased spouse under ORS 113.035. The motion must be filed not later than nine months after the death of the decedent. A copy of the motion must be served on the personal representative, on all persons who would be entitled to receive information under ORS 113.145 and on all distributees and recipients of portions of the augmented estate known to the surviving spouse who can be located with reasonable efforts. A surviving spouse may withdraw a motion for an election filed under this subsection at any time before the court enters an order granting the motion.

(c) Filing a petition for the exercise of the election under ORS 114.720 (1) within nine months after the death of the decedent.