According to the Article 24 of the Council Regulation n°06/2002 on Community designs, a registered design can be declared invalid by the EUIPO on request of a third person, if the design does not fulfil the conditions of validity set out in this regulation, for example the conditions of novelty and of individual character.
The cancellation request must be filed in the first of the two languages choosen by the owner.
A decision of the EUIPO declaring the invalidity of a design has for consequence that the design is considered as having had no effect as from its filing.
The request for invalidity can also be filed before a European Court in response to an infringement action.
The proceeding is a "paper proceeding", an hearing being very rare.
In order to revoke a Community design, it is necessary to show that the design was known/published before the application date of the Community design. The most important part of the request is the proof to be filed and the fact that the proofs have to be dated and published with a true date.
According to the EUIPO practice, a representation of the prior design(s), supported by documentary evidence of disclosure, is required.
The following list contains examples of documents that can serve this purpose.