Okla. Stat. tit. 74, § 74-916.2: Time for claiming death benefit, unpaid accumulated

contributions or final monthly benefit.

All claims for payment of the death benefit, unpaid accumulated

contributions of a deceased member or the final monthly benefit must

be made within three (3) years of the date of death of the member.

If no claim is made within three (3) years, payment of these monies

shall no longer be due and all such monies shall be forfeited to the

System in the Oklahoma Public Employees Retirement Fund.