Section 37. In section 52 of the principal Act,

37. In section 52 of the principal Act,— (a) in sub-section (1),— (i) for the opening words "Where a patent has been revoked", the words and figures "Where the patent has been revoked under section 64" shall be substituted; (ii) for the word "court", wherever it occurs, the words "Appellate Board or court" shall be substituted; (b) in sub-section (2), for the word "court", occurring at both the places, the words "Appellate Board or court" shall be substituted. Amendment of section 53.