# The Patents (Supplementary Protection Certificates) Rules 1997, Paragraph 3: Duration of the certificate


For the purposes of calculating the duration of the certificate, account shall be taken of a provisional first marketing authorization only if it is directly followed by a definitive authorization concerning the same product.

---
Source: https://www.legislation.gov.uk/uksi/1997/64/schedule/1/crossheading/13/paragraph/3 (the official version)
Page: https://openlegislation.uk/patents-supplementary-protection-certificates-rules-1997/schedule-1/crossheading-13/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.