Schedule 1, paragraph 4(2)

Where the term of a new existing patent is extended by this paragraph,— any licence in force under the patent from immediately before the appointed day until the end of the sixteenth year from the date of the patent shall, together with any contract relating to the licence, continue in force so long as the patent remains in force (unless determined otherwise than in accordance with this sub-paragraph), but, if it is an exclusive licence, it shall after the end of that year be treated as a non-exclusive licence; notwithstanding the terms of the licence, the licensee shall not be required to make any payment to the proprietor for working the invention in question after the end of that year; every such patent shall after the end of that year be treated as endorsed under section 35 of the 1949 Act (licences of right) , but subject to paragraph 4A below.

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Source: legislation.gov.uk · retrieved 2026-09-04