Article 5 International exhibitions
An applicant for a patent who wishes the disclosure of matter constituting an invention to be disregarded in accordance with section 2(4)(c) shall, at the time of filing the application for the patent, inform the comptroller in writing that the invention has been displayed at an international exhibition.
The applicant shall, within four months of filing the application, file a certificate, issued at the exhibition by the authority responsible for the exhibition, stating that the invention was in fact exhibited there. The certificate shall also state the opening date of the exhibition and, where the first disclosure of the invention did not take place on the opening date, the date of the first disclosure. The certificate shall be accompanied by an identification of the invention, duly authenticated by the authority.
For the purposes of section 130(2) a statement may be published in the Journal that an exhibition described in the statement falls within the definition of international exhibition in subsection (1) of that section.
In the case of an international application for a patent (UK), the application of this rule shall be subject to the provisions of rule 85(3).