Viewing Tweets won't unblock @SarahBarthel. 1  Sarah BarthelâVerified account @SarahBarthel 17 Oct 2016. 2  Sarah BarthelâVerified account @SarahBarthel 7 Oct 2016. 3  Sarah Barthel Retweeted.  Sarah Barthel 1  Retweeted. Sarah BarthelâVerified account @SarahBarthel 1 Aug 2016.  Sarah BarthelâVerified account @SarahBarthel 29 Jul 2016.
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.
Maintenance fees are required to maintain a patent in force beyond 4, 8, and 12 years after the issue date for utility and reissue utility patents. If the maintenance fee and any applicable surcharge are not paid in a timely manner, the patent will expire. See the Maintain Your Patent page for more information.