Article 5

1. Where the applicable legislation so authorizes, any Office of a Contracting Party which has been notified by the International Bureau of an extension to that Contracting Party, under Article 3ter1) or 2, of the protection resulting from the international registration shall have the right to declare in a notification of refusal that protection cannot be granted in the said Contracting Party to the mark which is the subject of such extension. Any such refusal can be based only on the grounds which would apply, under the Paris Convention for the Protection of Industrial Property, in the case of a mark deposited direct with the Office which notifies the refusal. However, protection may not be refused, even partially, by reason only that the applicable legislation would permit registration only in a limited number of classes or for a limited number of goods or services.

2.
a) Any Office wishing to exercise such right shall notify its refusal to the International Bureau, together with a statement of all grounds, within the period prescribed by the law applicable to that Office and at the latest, subject to subparagraphs b) and c), before the expiry of one year from the date on which the notification of the extension referred to in paragraph 1 has been sent to that Office by the International Bureau.
b) Notwithstanding subparagraph a), any Contracting Party may declare that, for international registrations made under this Protocol, the time limit of one year referred to in subparagraph a) is replaced by 18 months.
c) Such declaration may also specify that, when a refusal of protection may result fom an opposition to the granting of protection, such refusal may be notified by the Office of the said Contracting Party to the International Bureau after the expiry of the 18-month time limit. Such an Office may, with respect to any given international registration, notify a refusal of protection after the expiry of the 18-month time limit, but only if
(i) it has, before the expiry of the 18-month time limit, informed the International Bureau of the possibility that oppositions may be led after the expiry of the 18-month time limit, and
(ii) The notification of the refusal based on an opposition is made within a time limit of one month from the expiry of the opposition period and, in any case, not later than seven months from the date on which the opposition period begins.
d) Any declaration under subparagraphs b) or c) may be made in the instruments referred to in Article 14.2), and the effective date of the declaration shall be the same as the date of entry into force of this Protocol with respect to the State or intergovernmental organization having made the declaration. Any such declaration may also be made later, in which case the declaration shall have effect three months after its receipt by the Director General of the Organization (hereinafter referred to as "the Director General"), or at any later date indicated in the declaration, in respect of any international registration whose date is the same as or is later than the effective date of the declaration.
e) Upon the expiry of a period of ten years from the entry into force of this Protocol, the Assembly shall examine the operation of the system established by subparagraphs (a) to (d). Thereafter, the provisions of the said subparagraphs may be modified by a unanimous decision of the Assembly*[1].

3. The International Bureau shall, without delay, transmit one of the copies of the notification of refusal to the holder of the international registration. The said holder shall have the same remedies as if the mark had been deposited by him direct with the Office which has notified its refusal. Where the International Bureau has received information under paragraph 2c)(i), it shall, without delay, transmit the said information to the holder of the international registration.

4. The grounds for refusing a mark shall be communicated by the International Bureau to any interested party who may so request.

5. Any Office which has not notified, with respect to a given international registration, any provisional or final refusal to the International Bureau in accordance with paragraphs 1) and 2) shall, with respect to that international registration, lose the benefit of the right provided for in paragraph 1).

6. Invalidation, by the competent authorities of a Contracting Party, of the effects, in the territory of that Contracting Party, of an international registration may not be pronounced without the holder of such international registration having, in good time, been afforded the opportunity of defending his rights. Invalidation shall be notified to the International Bureau.