Part 2Trading income
Chapter 5Trade profits: rules allowing deductions
Expenses connected with patents, designs and trade marks
89Expenses connected with patents
1
In calculating the profits of a trade, a deduction is allowed for expenses incurred—
a
in obtaining for the purposes of the trade the grant of a patent or the extension of a patent's term, or
b
in connection with a rejected or abandoned application for a patent made for the purposes of the trade.
2
This section does not apply to professions or vocations.
90Expenses connected with designs or trade marks
1
In calculating the profits of a trade, a deduction is allowed for expenses incurred in obtaining for the purposes of the trade—
a
the registration of a design or trade mark,
b
the extension of a period for which the right in a registered design subsists, or
c
the renewal of registration of a trade mark.
2
This section does not apply to professions or vocations.