PATENTS ACT 1990 - SECT 23 Validity not affected by publication etc. after priority date

PATENTS ACT 1990 - SECT 23

    A patent is not invalid, so far as the invention is claimed in any claim, merely because of:

  (a)   the publication or use of the invention, so far as claimed in that claim, on or after the priority date of that claim; or

  (b)   the grant of another patent which claims the invention, so far as claimed in the first - mentioned claim, in a claim of the same or a later priority date.