Mo. Rev. Stat. § 400.9-510: Effectiveness of filed record.

(a) A filed record is effective only to the extent that it was filed by a person that may file it under section 400.9-509.

(b) A record authorized by one secured party of record does not affect the financing statement with respect to another secured party of record.

(c) A continuation statement that is not filed within the six-month period prescribed by section 400.9-515(d) is ineffective.