b) Signature 

In T 960/95 the notice of opposition was filed without having been signed. The board stated that a notice of opposition should be duly signed (R. 36(3), first sentence, EPC 1973, R. 61a EPC 1973; R. 50(3), first sentence, EPC, R. 86 EPC). The omission of the signature was remedied within the time limit set by the opposition division, and the notice of opposition therefore retained its original date of receipt (R. 36(3), third sentence, EPC 1973; R. 50(3), third sentence, EPC). See also T 1165/03 and T 1850/19, which confirmed the application of R. 50(3) EPC (former R. 36(3) EPC 1973).