Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid.
Where a person provides evidence that in a Contracting State, following a final decision, he has been entered in the patent register of such State instead of the previous proprietor, such person shall, at his request, replace the previous proprietor in respect of such State. Notwithstanding Article 118, the previous proprietor and the person making the request shall not be regarded as joint proprietors unless both so request.
Date retrieved: 24 November 2017
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EPC Implementing Rules
XR.84 EPC Continuation of the opposition proceedings by the European Patent Office of its own motion
EPC Rules relating to Fees
EPO Guidelines - D Opposition and Limitation/Revocation Procedures
XGL D IV 1.2.1 Deficiencies which, if not remedied, lead to the opposition being deemed not to have been filed
EPO Guidelines - E General Procedural Matters
EPO Guidelines - H Amendments and Corrections
XGL H III 4.3.2 Different texts where a transfer of the patent in respect of certain designated states takes place in opposition proceedings
Offical Journal of the EPO
XOJ EPO SE 2/2017, p18 - Implementing provisions to the Regulation on the European qualifying examination
XOJ EPO SE 1/2017, p107 - XI.6 - Decision of the President of the European Patent Office dated 10 September 2014 [ 1 ] concerning the filing of documents using the EPO web-form filing service
XOJ EPO 2008, 80 - Decision of Technical Board of Appeal 3.3.09 dated 27 February 2007 T 1178/04 3.3.09