Section 55

Use of one of associated or substantially identical trade marks equivalent to use of another

1 - Where under the provisions of this Act, use of a registered trade mark is required to be proved for any purpose, the 1[Registrar or the High Court, as the case may be,] may, if and, so far as it shall think right, accept use of a registered associated trade mark, or of the trade mark with additions or alterations not substantially affecting its identity, as an equivalent for the use required to be proved.

2 - The use of the whole of a registered trade mark shall, for the purpose of this Act, be deemed to be also use of any trade mark being a part thereof and registered in accordance with sub-section (1) of section 15 in the name of the same proprietor.

3 - Notwithstanding anything in section 32, the use of part of the registered trade mark in sub-section (2) shall not be conclusive as to its evidence of distinctiveness for any purpose under this Act.