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for each year of   renewal in
  respect of the 5th, 6th or 7th year of
  the patent

$140

$165

 for each year of renewal in
  respect of the 8th, 9th or 10th year
  of the patent

$370

$430

for each year of   renewal in
  respect of the 11th, 12th or 13th
  year of the patent

$520

$600

 for each year of renewal in
  respect of the 14th, 15th or 16th
  year of the patent

$670

$775

 for each year of renewal in
  respect of the 17th, 18th or 19th
  year of the patent

$820

$945

for renewal of the   20th year of
  the patent

$970

$1,120

for each year of   renewal after the
  20th year of the patent

$1,200

$1,380