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 laid before the other countries of the Union, by which it shall be given full faith and credit, except in the case provided for in Art. 9 of the Treaty on Patents, Trade-Marks, etc., of Mexico, and in case the requirements essential to the recognition of international property are lacking where literary or artistic works are involved according to the treaty thereon subscribed in Mexico.

In order that the States forming the Union may accept or refuse the recognition of the rights granted in the country of origin, and for the further legal purposes of such recognition, such States shall be allowed a term of one year from the date of notification by the proper office for the purpose of so doing.

In case patents, trade-marks, drawings, models, etc., or the right to literary or artistic works shall fail to obtain recognition on the part of any one of the offices of the States forming the Union, the International Bureau shall be made acquainted with the facts and reasons of the case in order that in its turn these facts maybe transmitted by it to the office of origin and to the interested party, for proper action according to local law.

Every registration or recognition of intellectual and industrial rights made in one of the countries of the Union and communicated to the others according to the form prescribed in the preceding articles shall have the same effect that would be produced if said registration or recognition had taken place in all of them, and every nullification or lapse of rights occurring in the country of origin and communicated in the same form to the others shall produce in them the same effect that it would produce in the former.

The period of international protection derived from the registration shall be that recognized by the laws of the country where the rights originated or have been recognized; and if said laws do not provide for such matters or do not specify a fixed period, the respective periods shall be: for patents, 15 years; for trade-marks or commercial designs, models, and industrial drawings, 10 years; for liter-