# The Civil Procedure (Amendment No. 2) Rules 2002, Paragraph 63.9: Claim for infringement and challenge of validity


(1) In a claim for infringement or an application in which the validity of a patent or registered design is challenged, the statement of case must contain particulars as set out in the practice direction.
(2) In a claim for infringement, the period for service of the defence or Part 20 claim is 42 days after service of the claim form.

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Source: https://www.legislation.gov.uk/uksi/2002/3219/schedule/paragraph/63.9 (the official version)
Page: https://openlegislation.uk/civil-procedure-amendment-no-2-rules-2002/schedule/paragraph-63.9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.