B. Except as otherwise provided in section 47-9705, 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 this chapter, as added in 1999, are not satisfied on July 1, 2001, the security interest:

1. 1. Is a perfected security interest for one year after July 1, 2001;
2. 2. Remains enforceable thereafter only if the security interest becomes enforceable under section 47-9203 before the year expires; and
3. 3. Remains perfected thereafter only if the applicable requirements for perfection under this chapter, as added in 1999, are satisfied before the year expires.