-] 4- (3) Any invalidated patent, or claim or part of a claim, shall be regarded as null and vod from the date of the grant of the patent. (4) The final decision of the court' shall be notified to the Director General who shall record it and publish a reference thereto as soon as possible PART II INTERNATIONAL APPLICATlONS UNDER THE PATENT COOPERATlON TREATY 22. For the purposes of this Act. Interpretation of Terms concerning the peT (i) (ii) Filing Date and Effects of International Application Designating . Liberia. Office of the Director General as Receiving "Patent Cooperation Treaty" means the Patent Cooperation Treaty done at Washington on June 19, ]970; "designate," "designated Office," "elect," "elected Office." .International application," "international filing date," "international preliminaryexamination" and "receiving Office" have the same meanings as in the Patent Cooperation Treaty An international application designating Liberia shall, subject to this Pan, be treated as an application for a patent filed under this Act having as its filing date the international filing date accorded under the Patent Cooperation Treaty 24(1) The Office ofthe Director General shall. unless an agreement is in force under subsection (2) act as a receiving office in respect of any international application filed with it by a resident or national of Liberia. (2) With the consent of the Director General, the Office of the Registrar may make an agreement of the kind referred to ill Rule 19.1 (b) of the Regulations under the Patent Cooperation Treaty whereby (an intergovernmental organization or the national office of another Contracting State of the Patent Cooperation Treaty) shall act instead of the office of the Registrar as receiving office for applicants who are residents or nationals of Liberia. Filing of International Application with the .Office of the Director General . 25 An international application filed with the Office of the Director General as receiving Office shall be filed in English and the prescribed transmittal fee shall be paid to the Office of the Director General. Office of the Director as Designated Office 26 The Office of the Director General shall Act as a designated Office in respect of an international application in which Liberia is designated for the purposes of obtaining a national patent under this Act. Office of the Director General as Elected Office 27. The Office of Director General shall act as an elected Office in respect of an international application in which Liberia is designated as referred to in Section 19 if the applicant elects Liberia for the purposes of international preliminary examination under Chapter 11 ofthe Patent Cooperation Treaty.