(1) Any State member of the International (Paris) Union for the Protection of Industrial Property may become party to this Treaty by:

(i) signature followed by the deposit of an instrument of ratification, or

(ii) deposit of an instrument of accession.

(2) Instruments of ratification or accession shall be deposited with the Director General.

(1) This Treaty shall enter into force, with respect to the first five States which have deposited their instruments of ratification or accession, three months after the date on which the fifth instrument of ratification or accession has been deposited.

(2) This Treaty shall enter into force with respect to any other State three months after the date on which that State has deposited its instrument of ratification or accession unless a later date has been indicated in the instrument of ratification or accession. In the latter case, this Treaty shall enter into force with respect to that State on the date thus indicated.

(1) Any Contracting State may denounce this Treaty by notification addressed to the Director General.

(2) Denunciation shall take effect two years after the day on which the Director General has received the notification.

(3) The right of denunciation provided for in paragraph (1) shall not be exercised by any Contracting State before the expiration of five years from the date on which it becomes party to this Treaty.

(4) The denunciation of this Treaty by a Contracting State that has made a declaration referred to in Article 7 (1) (a) with respect to a depositary institution which thus acquired the status of international depositary authority shall entail the termination of such status one year after the day on which the Director General received the notification referred to in paragraph (1) .

(1) (a) This Treaty shall be signed in a single original in the English and French languages, both texts being equally authentic.

(b) Official texts of this Treaty shall be established by the Director General, after consultation with the interested Governments and within two months form the date of signature of this Treaty, in the other languages in which the convention Establishing the World Intellectual Property Organization was signed.

(c) Official texts of this Treaty shall be established by the Director General, after consultation with the interested Governments, in the Arabic, German, Italian, Japanese and Portuguese languages, and such other languages as the Assembly may designate.

(2) This Treaty shall remain open for signature at Budapest until December 31, 1977.

(1) The original of this Treaty, when no longer open for signature, shall be deposited with the Director General.

(2) The Director General shall transmit two copies, certified by him, of this Treaty and the Regulations to the Governments of all the States referred to in Article 15(1), to the intergovernmental organizations that may file a declaration under Article 9(1)(a) and, on request, to the Government of any other State.

(3) The Director General shall register this Treaty with the Secretariat of the United Nations.

(4) The Director General shall transmit two copies, certified by him, of any amendment to this Treaty and to the Regulations to all Contracting States, to all intergovernmental industrial property organizations and, on request, to the Government of any other State and to any other intergovernmental organization that may file a declaration under Article 9 (1)(a).

The Director General shall notify the Contracting States, the intergovernmental industrial property organizations and those States not members of the Union which are members of the International (Paris) union for the Protection of Industrial Property of:

(i) signatures under Article 18;

(ii) deposits of instruments of ratification or accession under Article 15 (2);

(iii) declarations filed under Article 9(1)(a) and notifications of withdrawal under Article 9(2) or (3);

(iv) the date of entry into force of this Treaty under Article 16(1);

(v) the communications under Articles 7 and 8 and the decisions under Article 8;

(vi) acceptance of amendments to this Treaty under Article 14(3);

(vii) any amendment of the Regulations;

(viii) the dates on which amendments to the Treaty or the Regulations enter into force;

(ix) denunciations received under Article 17.