“(1) In general.—Except as provided in paragraph (2), the amendments made by this section [amending sections
312 and
1016 of this title and repealing this section] shall apply to expenditures paid or incurred after December 31, 1986.
“(2) Transitional rule.—The amendments made by this section shall not apply to any expenditure incurred—
“(B) with respect to the development, protection, expansion, registration, or defense of a trademark or trade name commenced before March 2, 1986, but only if not less than the lesser of $1,000,000 or 5 percent of the aggregate cost of such development, protection, expansion, registration, or defense has been incurred or committed before such date.