Final settlement shall be made within three years, after the second publication of the notice to creditors, unless otherwise ordered by the court after notice to all interested parties. [C51, §1393; R60, §2425; C73, §2439, 2469; C97, §3365, 3394; C24, 27, 31, 35, 39, § 11989, 12044; C46, 50, 54, 58, 62, §636.4, 638.4; C66, 71, 73, 75, 77, 79, 81, §633.473 ] Referred to in §635.8