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Patent Rules

Version of section 100 from 2019-10-30 to 2022-10-02:


Marginal note:No amendment after notice of allowance

  •  (1) Subject to subsection (2), the specification and the drawings contained in an application for a patent must not be amended by the applicant after a notice of allowance is sent.

  • Marginal note:Exception — obvious error

    (2) The specification and the drawings may be amended by the applicant on or before the day on which the final fee set out in item 13 of Schedule 2 is paid or, if the final fee is refunded, on or before the day on which the final fee is paid again if, from the specification and the drawings contained in the application for a patent on the day on which the notice of allowance was sent, it is obvious that something other than what appears in the specification and the drawings was intended and that nothing other than the proposed amendment could have been intended.


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