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Section 55(4)

PA 1977
Patents Act 1977 · United Kingdom

So far as the invention has not been so recorded or tried, any use of it made by virtue of this section at any time either— shall be made on such terms as may be agreed either before or after the use by the government department and the proprietor of the patent with the approval of the Treasury or as may in default of agreement be determined by the court on a reference under section 58 below. after the publication of the application for the patent for the invention; or without prejudice to paragraph (a) above, in consequence of a relevant communication made after the priority date of the invention otherwise than in confidence;

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