# The Semiconductor Products (Protection of Topography) Regulations 1987, Regulation 5


Topography right shall commence upon the creation of the topography or, in a case falling within regulation 3(2) above, upon its first commercial exploitation, and shall cease—
(a) at the end of the tenth year after the end of the year in which it was first commercially exploited anywhere in the world, or
(b) if it is not commercially exploited anywhere in the world within a period of fifteen years commencing with its creation, at the end of that period.

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Source: https://www.legislation.gov.uk/uksi/1987/1497/regulation/5 (the official version)
Page: https://openlegislation.uk/semiconductor-products-protection-of-topography-regulations-1987/regulation-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.