Fees and expenses incurred in obtaining the grant or the
extension of the term of a patent for the purposes of a trade are
admissible as a deduction in computing the profits of the trade.
Fees and expenses incurred in connection with unsuccessful
applications for patents for the purposes of a trade are also
allowable.
Fees incurred for the renewal of a patent for the purposes of
a trade are allowable. Agents’ charges in connection with the
renewal of a patent are allowable if the renewal fees are
allowable.
Where:
the non-trader is given an allowance equal to the expenditure incurred. The allowance is made for the chargeable period in which the fees or expenses are paid or incurred and can only be offset against patent income.