At the time of service, a certificate of service, but not the interrogatories, shall be filed with the court as provided in Rule 57.01(d).
The court may allow a shorter or longer time.
At the time of service, a certificate of service, but not the response, shall be filed with the court as provided in Rule 57.01(d).
The certificate shall show the caption of the case, the name of the party served, the date and manner of service, the designation of the document, e.g., first interrogatories or answers to second interrogatories, and the signature of the serving party or attorney. The answers bearing the original signature of the party answering the interrogatories shall be served on the party submitting the interrogatories, who shall be the custodian thereof until the entire case is finally disposed.
Copies of interrogatory answers may be used in all court proceedings to the same extent the original answers may be used.
Mo. R. Civ. P. 57.01