Basis for the examination 

If the patent proprietors submit amendments to the description, claims or drawings after the notice of opposition has been communicated to them (see H‑II, 3), the opposition division must take as a basis for its examination the text of the European patent submitted by the patent proprietors. This principle, that the opposition division must concern itself solely with the text most recently "submitted or agreed by the patent proprietor", also applies to the rest of the opposition procedure. (As regards the possibility of amending texts, see H‑IV, 3.1, second paragraph.)

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