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It should be emphasized that in both cases (both with respect to inventions and distinctivesigns) an administrative declaration of the Institute will not be required whenthe cancellation occurs as a result of the passage of time.7.1.3. Cancellation for loss of distinctivenessFinally, IMPI can also declare the cancellation of a trademark registration when it has lostits distinctiveness for having caused or even tolerated that it be transformed into a genericname that corresponds to one or more products or services for which it is registered.The administrative declaration proceedings can be initiated ex oficio by IMPI or at therequest of someone with legal interest and grounds for the claim. The request must befiled in writing, drafted in Spanish and must contain the following information:a) Name of the petitioner and, if applicable, of its representative;b) Domicile to receive notifications;c) Name and domicile of the opposing party and its representative;d) Object of the request;219e) Description of the facts;f) Legal grounds.Furthermore, with such request the documents or document on which the action islegally based must be filed in original or certified copy, the applicable evidence offeredunless it is supervening, the payment of the corresponding fee evidenced and, if applicable,the representative capacity of the representative shown.Once the request for administrative declaration is admitted, the Institute will notifythe affected title holder, granting the latter a term of one month to file a response (objectionsand defenses). Both parties may also, prior to the closing of the procedure, presentclosing arguments in writing. After such period and once the background of the case,the arguments made by the parties and the evidence offered have been studied, the IMPIwill issue the respective administrative ruling.7.2. Administrative InfringementAdministrative infringement proceedings are also carried out before the IMPI, which isthe administrative authority responsible for industrial property matters and, therefore,the one that determines whether or not there has been an infringement of the rightsderived from a patent or a registration. 27__________27In this regard, the LPI mentions the following as infringements: (i) engaging in acts contrary to proper practiceand custom in industry, commerce, and services that amount to unfair competition and that relate to the subjectmatter regulated by this law; (ii) causing goods to appear to be patented products that are not; (iii) placingproducts on sale or in circulation or offering services with a label indicating that they are protected by aIndustrial Property