2. The Parties shall cooperate with a view to eliminating trade in goods that infringe intellectual property rights. For this purpose, each Party shall establish and notify the other Parties of contact points in its federal government and shall exchange information concerning trade in infringing goods.

Article 1720: Protection of Existing Subject Matter

1. Other than the provisions of Article 1705(7), this Agreement does not give rise to obligations in respect of acts that occurred before the date of application of the relevant provisions of this Agreement for the Party in question.

2. Except as otherwise provided for in this Agreement, each Party shall apply this Agreement to all subject matter existing on the date of application of the relevant provisions of this Agreement for the Party in question, and which is protected in a Party on the said date, or which meets or comes subsequently to meet the criteria for protection under the terms of this Chapter. In respect of this paragraph and paragraphs 3 and 4, a Party's obligations with respect to existing works shall be solely determined under Article 18 of the Berne Convention and with respect to the rights of producers of sound recordings in existing sound recordings shall be determined solely under Article 18 of that Convention, as made applicable under this Agreement.

3. Except as required under Article 1705(7), and notwithstanding paragraph 2, a Party shall not be required to restore protection to subject matter that, on the date of application of the relevant provisions of this Agreement for the Party in question, has fallen into the public domain in its territory.

4. Any acts in respect of specific objects embodying protected subject matter which become infringing under the terms of legislation in conformity with this Agreement, and which were commenced or in respect of which a significant investment was made, before the date of ratification of this Agreement by that Party, any Party may provide for a limitation of the remedies available to the right holder as to the continued performance of such acts after the date of application of the Agreement for that Party. In such cases, the Party shall, however, at least provide for payment of equitable remuneration.

5. No Party shall be obliged to apply the provisions of Article 1705(2)(d) or Article 1706(1)(d) with respect to originals or copies purchased prior to the date of application of the relevant provisions of this Agreement for that Party.

6. No Party shall be required to apply Article 1709(10), or the requirement in Article 1709(7) that patent rights shall be enjoyable without discrimination as to the field of technology, to use without the authorization of the right holder where authorization for such use was granted by the government before the text of the Draft Final Act Embodying the Results of the Uruguay Round of Multilateral Trade Negotiations became known.

7. In the case of intellectual property rights for which protection is conditional upon registration, applications for protection that are pending on the date of application of the relevant provisions of this Agreement for the Party in question shall be permitted to be amended to claim any enhanced protection provided under the provisions of this Agreement. Such amendments shall not include new matter.

Article 1721: Definitions