It is established case law that there is no absolute right to have an issue decided upon by two instances. See, for example, T 133/87, T 249/93, T 83/97, T 402/01, T 399/04 and T 1252/05. This is the case even if as a consequence the patent is revoked for the first time by the board of appeal (see e.g. T 557/94, T 839/05). Other criteria, e.g. the general interest that proceedings are brought to a close within an appropriate period of time, have also to be taken into account by the board when deciding whether or not to remit a case (T 839/05).