(1) The proprietor of a trade mark or of a commercial designation shall not be entitled to prohibit the use of a later registered trade mark for the goods or services for which it has been registered in so far as he has acquiesced, for a period of five successive years, to the use of the trade mark while being aware of such use, unless the registration for the later trade mark was applied for in bad faith.
(2) The proprietor of a trade mark or of a commercial designation shall not be entitled to prohibit the use of a trade mark within the meaning of section 4 no. 2 or 3, of a commercial designation or of any other later right within the meaning of section 13 in so far as he has acquiesced, for a period of five successive years, to the use of this right while being aware of such use unless the proprietor of this right acted in bad faith at the time of acquisition of the right.
(3) In cases falling under subsections (1) and (2), the proprietor of the later right may not prohibit the use of the earlier right.
(4) Subsections (1) to (3) shall not affect the application of general principles regarding the forfeiting of rights.