409. A taxpayer’s Canadian development expenses do not however include(a) any consideration given by the taxpayer for any share, or for any interest therein or right thereto, except as provided by paragraph e of section 408;
(b) any expense described in paragraph e of section 408 and incurred by another taxpayer to the extent that the expense is a Canadian development expense of that other taxpayer by virtue of that paragraph, a Canadian exploration expense of that other taxpayer by virtue of paragraph e of section 395 or a Canadian oil and gas property expense of that other taxpayer by virtue of paragraph c of section 418.2;
(c) any amount included at any time in the capital cost to the taxpayer of any depreciable property of a prescribed class;
(c.1) an expense that is the cost, or any part of the cost, to the taxpayer of any depreciable property of a prescribed class that was acquired after 31 December 1987; or
(d) the taxpayer’s share of any consideration, expense, cost or expenditure referred to in any of paragraphs a to c given or incurred, as the case may be, by a partnership.