(a) Post-lapse maintenance and retrieval of information. The filing office shall maintain a record of the information provided in a filed financing statement for at least 1 year after the effectiveness of the financing statement has lapsed under Section 9–515 with respect to all secured parties of record. The record must be retrievable by using the name of the debtor and:

1. (1) if the record was filed or recorded in the filing office described in Section 9–501(a)(1), by using:

   1. (A) in the case of unregistered land governed by chapter 36, the book and page number assigned to the initial financing statement to which the record relates, or if a book and page number has not yet been assigned to the initial financing statement, the instrument number of the initial financing statement and the date on which the initial financing statement was originally filed, and, in the case of registered land governed by chapter 185, the document number of the initial financing statement to which the record relates; and
   2. (B) the information specified in Section 9–502(b); or
2. (2) if the record was filed in the filing office described in Section 9–501(a)(2), by using the file number assigned to the initial financing statement to which the record relates.