Stockholm Act (1967): A notification was deposited by the Government of the Portuguese Republic in which that Government indicated its desire to avail itself of the provisions of Article 18(2) of the Madrid (Marks) Agreement. That notification entered into force on the date of its receipt, that is, on August 25, 1970. Pursuant to the said Article, the Portuguese Republic, which was a member of the Madrid Special Union, could, for five years from April 26, 1970, date of entry into force of the Convention Establishing the World Intellectual Property Organization (WIPO), exercise the rights provided under Article 10 to 13 of the Stockholm Act of the Madrid (Marks) Agreement, as if it were bound by those Articles. (see Madrid (Marks) Notification No. 11)
Nice Act (1957): Pursuant to Article 3bis of the said Act, the Government of Portugal declared that the protection resulting from the international registration shall extend to Portugal only at the express request of the proprietor of the mark. Date of effect: December 15, 1966. (see La Propriété Industrielle 1960, No.3, p.41 and Industrial Property 1966, No.12, p.271)
Ratification of the Brussels Act (1900) included the Azores and Madeira. (see La Propriété Industrielle 1902, No.8, p.123)
Ratification of the Washington Act (1911) included the Azores and Madeira. (see La Propriété Industrielle 1914, No.1, p.1)
Accession to the Hague Act (1925) included the Azores and Madeira. (see La Propriété Industrielle 1931, No.4, p.47)
Accession to the London Act (1934) included the Azores and Madeira. (see La Propriété Industrielle 1949, No.10, p.153)