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Amortization of Intangible Assets. To illustrate the amortization of an intangible asset, imagine XYZ Biotech spends $30 million dollars on a patent with a useful life of 15 years. Theoretically, to account for the expense over a 15-year period, XYZ Biotech records $2 million each year as an amortization expense.
1 (d) Maintenance fees may be paid in patents without surcharge during the periods extending respectively from: ( 2 1) 3 years through 3 years and 6 months after grant for the first maintenance fee, ( 3 2) 7 years through 7 years and 6 months after grant for the second maintenance fee, and.