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Versions of s. 20(12)

P-4 — Patent Act · 1 version · View current text

Historical text comes from the Justice Laws point-in-time corpus and is unofficial — not the official version.

  1. 2002-12-31 to present available View Source

    No proceeding by petition or otherwise lies to have declared invalid or void a patent granted for an invention in relation to which a certificate has been given by the Minister of National Defence under subsection (7), except by permission of the Minister.