Section 54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F1 Repealed Annotations Textual amendments F1 Ss. 54, 57, 58, 68 repealed by Patents Act 1977 (c. 37), Sch. 6 ← Section 53 Section 54 Section 55 →