(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 one 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) If the record was filed or recorded in the filing office described in section 9-501(a)(1), by using the file number assigned to the initial financing statement to which the record relates and the date and time that the record was filed or recorded; or