(750 ILCS 55/1) (from Ch. 40, par. 1601)
    Sec. 1. No attack upon or proceedings contesting the validity of an adoption decree heretofore entered shall be made either directly or collaterally because of the failure to serve notice on or give notice to the reputed father, unless such attack or proceedings shall be instituted within one year after the effective date of this Act.
(Source: Laws 1949, p. 12.)