This revised version of the Guidelines for Examination will apply as from 1 November 2015. Until then, the September 2014 edition of the Guidelines remains valid.

9.2.2 Documents defining the state of the art and not prejudicing novelty or inventive step

Where a document cited in the European search report represents state of the art not prejudicial to the novelty or inventive step of the claimed invention, it should be indicated by the letter "A" (see, however, B‑III, 1.1).

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