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European Patent Convention (EPC 1973)

A revised version of the European Patent Convention entered into force on 13 December 2007. The provisions of the revised Convention apply unless the transitional provisions provide for the applicability of the EPC 1973.

Rule 23a

Prior application as state of the art

A European patent application shall be considered as comprised in the state of the art under Article 54, paragraphs 3 and 4, only if the designation fees under Article 79, paragraph 2, have been validly paid.

Cross-reference list
R. 23a -