(1) A transfer of a European patent application shall be recorded in the Register of European Patents at the request of an interested party and on production of documents satisfying the European Patent Office that the transfer has taken place.
(2) The request shall not be deemed to have been filed until such time as an administrative fee has been paid. It may be rejected only in the event of failure to comply with the conditions laid down in paragraph 1.
(3) A transfer shall have effect vis-à-vis the European Patent Office only when and to the extent that the documents referred to in paragraph 1 have been produced.