Wis. Stat. § 409.703: Security interest perfected before effective date.

(1) Continuing priority over lien creditor: perfection requirements satisfied. A security interest that is enforceable immediately before July 1, 2001, and would have priority over the rights of a person that becomes a lien creditor at that time is a perfected security interest under 2001 Wisconsin Act 10 if, on July 1, 2001, the applicable requirements for enforceability and perfection under 2001 Wisconsin Act 10 are satisfied without further action.

(2) Continuing priority over lien creditor: perfection requirements not satisfied. Except as otherwise provided in s. 409.705, if, immediately before July 1, 2001, a security interest is enforceable and would have priority over the rights of a person that becomes a lien creditor at that time, but the applicable requirements for enforceability or perfection under 2001 Wisconsin Act 10 are not satisfied as of July 1, 2001, the security interest:

(a) Is a perfected security interest until one year after July 1, 2001;

(b) Remains enforceable on and after one year after July 1, 2001, only if the security interest becomes enforceable under s. 409.203 before one year after July 1, 2001; and

(c) Remains perfected on and after one year after July 1, 2001, only if the applicable requirements for perfection under 2001 Wisconsin Act 10 are satisfied before one year after July 1, 2001.