The European Patent Convention

Chapter I

Opposition procedure

Rule 75 Surrender or lapse of the patent

Rule 76 Form and content of the opposition

Rule 77 Rejection of the opposition as inadmissible

Rule 78 Procedure where the proprietor of the patent is not entitled

Rule 79 Preparation of the examination of the opposition

Rule 80 Amendment of the European patent

Rule 81 Examination of opposition

Rule 82 Maintenance of the European patent in amended form

Rule 83 Request for documents

Rule 84 Continuation of the opposition proceedings by the European Patent Office of its own motion

Rule 85 Transfer of the European patent

Rule 86 Documents in opposition proceedings

Rule 87 Content and form of the new specification of the European patent

Rule 89 Intervention of the assumed infringer

EPC	EPC 1973
R. 75	Art. 99(3)
R. 76	R. 55
R. 77	R. 56
R. 78	R. 13(4); R. 16(3)
R. 79	R. 57
R. 80	R. 57a
R. 81	R. 58(1), (2), (3)
R. 82	R. 58(4), (5), (6), (7), (8)
R. 83	R. 59
R. 84	R. 60
R. 85	R. 61
R. 86	R. 61a
R. 87	R. 62, R. 62a
R. 88	R. 63
R. 89	Art. 105