(a) Each application, petition, certificate, or other paper permitted or required to be filed in a probate court or court having probate jurisdiction under this subtitle must be filed with the county clerk of the proper county.
(b) The county clerk shall file each paper after endorsing on it:
(1) the date on which the paper is filed;
(2) the docket number; and
(3) the clerk’s official signature.

(c) A person may initially file a paper with the county clerk by the use of reproduced, photocopied, or electronically transmitted paper if the person files the original signed copies of the paper with the clerk not later than the 72nd hour after the hour on which the initial filing is made. If the 72-hour period ends on a Saturday, Sunday, or legal holiday, the filing period is extended until 4 p.m. on the first succeeding business day. If extremely hazardous weather conditions exist or a disaster occurs, the presiding judge or magistrate may by written order made each day extend the filing period until 4 p.m. on the first succeeding business day. The written order must declare that an emergency exists because of the weather or the occurrence of a disaster. If a person detained under this subtitle would otherwise be released because the original signed copy of a paper is not filed within the 72-hour period but for the extension of the filing period under this section, the person may be detained until the expiration of the extended filing period. This subsection does not affect another provision of this subtitle requiring the release or discharge of a person.
(d) If the clerk does not receive the original signed copy of a paper within the period prescribed by this section, the judge may dismiss the proceeding on the court’s own motion or on the motion of a party and, if the proceeding is dismissed, shall order the immediate release of a proposed patient who is not at liberty.