The Company is also a party to an Exclusive License Agreement (the “2013 Exclusive Agreement”) with The Regents whereby The Regents granted to the Company an exclusive license for the use of certain other patents. The 2013 Exclusive Agreement remains in effect for the life of the last-to-expire patent or last to be abandoned patent application, whichever is later. The Company paid Regents an initial license issue fee of $10,000 for these other patents, which was charged to General and Administrative expense, as incurred. The Company is also required to pay annual maintenance fees to the licensors. Aggregate maintenance fees for the first three years following execution of the agreement are $7,500. Thereafter, the Company is required to pay maintenance fees of $5,000 annually until the first sale of a licensed product. The Company agreed to pay The Regents specified development milestone payments aggregating up to $765,000 for the first product sold under the 2013 Exclusive Agreement. Milestone payments for additional products developed and sold under the 2013 Exclusive Agreement are reduced by 50%. In addition, for the duration of the 2013 Exclusive Agreement, the Company is required to pay The Regents royalties equal to 2% of the Company’s worldwide net sales of drugs, therapies or other products developed from claims covered by the licensed patent, subject to a minimum royalty payment of $75,000 annually, beginning after the first commercial sale of a licensed product. The Company is required to pay The Regents royalties ranging from 8% of worldwide sublicense sales of covered products (if the sublicense is entered after commencement of phase II clinical trials to 12% of worldwide sublicense sales (if the sublicense is entered prior to commencement of phase I clinical trials). The agreement also requires the Company to meet certain diligence and development milestones, including filing of an IND Application for a product covered by the agreement on or before the seventh anniversary of the agreement date. Through December 31, 2016, no royalties have been incurred under the agreement. All maintenance fees due and payable as of that date have been paid.