Section 14: Part A registration conclusively valid after seven years.

(1) In all legal proceedings relating to a trade mark registered in Part A of the register (including applications under section 38 of this Act) the original registration of the trade mark in Part A of the register shall, after the expiration of seven years from the date of that registration, be taken to be valid in all respects, unless-
(a) that registration was obtained by fraud; or
(b) the trade mark offends against the provisions of section 11 of this Act.
(2) Nothing in section 6 (1) of this Act shall be construed as making applicable to a trade mark, as being a trade mark registered in Part B of the register, the foregoing provisions of this section relating to a trade mark registered in Part A of the register.