A notarial jurat constitutes an acknowledgment in due form for all plats or maps that have heretofore been accepted for filing and registration under N.C. Gen. Stat. § 47-30 as amended. No plat or map heretofore accepted for filing and registration, that contains a notarial jurat instead of an acknowledgment may be held to be improperly registered solely for lack of a proper acknowledgment. (1983, c. 391.)