448. Grounds of invalidity.

A patent may be revoked on any of the following grounds1:

  1.  

    (1)     that there is no patentable invention2, that is say:

    1.  

      (a)     that the invention was not new3;

    2.  

      (b)     that the invention did not involve an inventive step4;

    3.  

      (c)     that the invention was incapable of industrial application5;

    4.  

      (d)     that it was not an invention as defined by the Patents Act 19776;

    5.  

      (e)     that it was contrary to public policy or morality7;

  2.  

    (2)     that the patent specification is insufficient8;

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