(a) [Financing statement naming original debtor.]
Except as otherwise provided in this section, a filed financing statement naming an original debtor is effective to perfect a security interest in collateral in which a new debtor has or acquires rights to the extent that the financing statement would have been effective had the original debtor acquired rights in the collateral.
(b) [Financing statement becoming seriously misleading.]
If the difference between the name of the original debtor and that of the new debtor causes a filed financing statement that is effective under subsection (a) to be seriously misleading under Section 9-506:
(1) the financing statement is effective to perfect a security interest in collateral acquired by the new debtor before, and within four months after, the new debtor becomes bound under Section 9-203(d); and
(2) the financing statement is not effective to perfect a security interest in collateral acquired by the new debtor more than four months after the new debtor becomes bound under Section 9-203(d) unless an initial financing statement providing the name of the new debtor is filed before the expiration of that time.
(c) [When section not applicable.]
This section does not apply to collateral as to which a filed financing statement remains effective against the new debtor under Section 9-507(a).