Section 46(3B)
PA 1977
Patents Act 1977 · United Kingdom
For the purposes of subsection (3)(d) above the expiry date in relation to a renewal fee is the day at the end of which, by virtue of section 25(3) above, the patent in question ceases to have effect if that fee is not paid.
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Source: legislation.gov.uk · retrieved 2026-09-04