This Rio convention re-adopted (art. 1) the Mexico treaty, with modifications as stated in the convention. These provided for two international bureaus (art. 2) for the centralization of registrations (art. 3), one at Havana for the United States, Mexico, Central American states, Panama, Colombia and Venezuela, Cuba, Haiti and San Domingo, and one at Rio de Janeiro for Brazil, Argentina and the other South American states, both to have (art. 4) identical systems and books, and to exchange monthly authenticated copies of documents, so that the two should practically constitute one bureau. The proper bureau was to receive (art. 5) from each country authenticated copies of its own registrations of patents and copyrights for transmission (art. 6) to the other countries, where they should be given full faith and credit, unless the proper bureau be notified to the contrary within one year. The registration in one country (art. 7) should have the same effect in each other country, as if made in all, and the term of protection was made that provided by the legislation of the country "where the rights originated or have been recognized," or, if no term is specified, then for patents fifteen years, for designs ten years, both subject to renewals, and for literary and artistic copyright life and 25 years. The expenses of the bureau were to be guaranteed (art. 8) by the several countries in the same proportion as for the bureau of American Republics (now called the Pan American Union) at Washington; the two bureaus were placed under the protection of Cuba and Brazil under identical regulations, made by concurrence of the two governments with the approval of the other countries; and an additional registration fee, equivalent to $5, collected in the country of original registration, was to be equally divided for the maintenance of the two bureaus. The bureaus were authorized (art. 9) to (1) collect and publish information, (2) print an official review, (3) to advise the respective governments of defects, (4) to arrange for future international conferences, (5) to make yearly report, (6) to exchange publications with other institutions, and (7) to act as cooperative agents for each of the governments concerned. The convention was to become effective (art. 10) on the establishment of one of the bureaus for such countries as should accede to the new convention, the other countries remaining bound by the former convention; and each of the bureaus was to be established (art. 11) as soon as two thirds of the countries in its own group should ratify the convention, and the first bureau established might act temporarily for the other countries. It was finally provided (art. 12) that Brazil should be the intermediary for exchange of ratifications. {Sidenote: Ratification} The Rio convention of 1906 was ratified only by Guatemala (1907 and 1909), Salvador (1907), Nicaragua (1908) and Costa Rica (1908), and by Chile (1910); and it never became effective.