(1) Communications between the European Patent Office and the central industrial property offices of the Contracting States which arise out of the application of the Convention shall be effected directly between these authorities. Communications between the European Patent Office and the courts or other authorities of the Contracting States may be effected through the intermediary of the above central industrial property offices.
(2) Expenditure in respect of communications under paragraph 1 shall be chargeable to the authority making the communications, which shall be exempt from fees.
