(1) The European Patent Office and, subject to the application of the legislative or regulatory provisions referred to in Article 75, paragraph 2, the central industrial property office of any Contracting State shall, on request, communicate to each other any useful information regarding the filing of European or national patent applications and regarding any proceedings concerning such applications and the resulting patents.
(2) The provisions of paragraph 1 shall apply to the communication of information by virtue of working agreements between the European Patent Office and:
(a) the central industrial property office of any State which is not a party to this Convention;
(b) any intergovernmental organisation entrusted with the task of granting patents;
(c) any other organisation.
(3) The communications under paragraphs 1 and 2(a) and (b) shall not be subject to the restrictions laid down in Article 128. The Administrative Council may decide that communications under paragraph 2(c) shall not be subject to such restrictions, provided that the organisation concerned shall treat the information communicated as confidential until the European patent application has been published.