system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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or Partially Treated Integra Product. PcoMed and Integra will make commercially reasonable efforts to increase the *** Run capacity. Changes to the *** Run Fee based on increased capacity will be determined upon completion of the appropriate process validations. (b) For Regulatory Purposes. PcoMed will not charge *** Run Fees for reasonable quantities, not to exceed *** units or four *** Runs, of Treated Integra Products or Partially Treated Integra Product and test samples required to complete US Marketing Clearance and/or EU Marketing Clearance testing and validations. 6 *** Portions of this page have been omitted pursuant to a request for Confidential Treatment filed separately with the Commission. (c) Payment. *** Run Fees shall be due and payable within thirty (30) days of each *** Run. 2.4. Minimum Payments. Integra shall use commercially reasonable efforts to Sell Treated Integra Products and Partially Treated Integra Products that generate payments to PcoMed of no less than the Minimum Payments applicable to each Minimum Payment Period. The Minimum Payment applicable to each Minimum Payment Period shall be due annually on or before 45 days after the last day of each Minimum Payment Period. The Minimum Payment may be satisfied either by payments of the Fees paid pursuant to Sections 2.2 and 2.3, or by the sum of Fees paid and an additional elective cash payment from Integra to PcoMed. It shall remain in Integra's sole discretion whether or not to satisfy the Minimum Payment for any Minimum Payment Period by making an additional elective cash payment. In the event that Integra fails to satisfy the Minimum Payment for any Minimum Payment Period, PcoMed may, at its sole election, give notice, as set forth in Section 3.2, for conversion of Integra's exclusive arrangement under Section 3.1 to a non-exclusive arrangement. PcoMed's conversion right is PcoMed's sole and exclusive remedy for Integra's failure to satisfy the Minimum Payment for any Minimum Payment Period. Integra shall have no liability at any time to PcoMed for Integra's failure to pay the Minimum Payment. 3. GRANT OF EXCLUSIVITY COMMERCIALIZATION 3.1. Grant of Exclusive Rights. Subject to the terms and conditions of this Agreement, PcoMed hereby grants to Integra and its Affiliates a sole and exclusive worldwide right to sell and commercialize Integra Products treated by PcoMed, with the PcoMed Surface Modification Technology (the "Right") for use in the Field in the Territory, including the right to conduct research and development in support of any of the foregoing. Nothing herein grants any rights to Integra (i) to manufacture any products using the PcoMed Surface Modification Technology or (ii) to sell or commercialize any products utilizing the PcoMed Surface Modification Technology other than the Integra Products for use in the Field in the Territory. Neither PcoMed nor its Affiliates shall sell or offer for sale, or grant rights under the PcoMed Surface Modification Technology to any Third Party in the Field in the Territory for products that utilize or embody the PcoMed Surface Modification Technology. Except as expressly stated in the preceding sentence, PcoMed shall not be subject to any restriction under this Agreement with regard to the PcoMed Surface Modification Technology. Without limiting the foregoing or Section 8.3 below, the exclusive nature of the Rights shall not in any way limit PcoMed from making, having made, using, selling or offering for sale products and/or services that do not utilize or embody the PcoMed Surface Modification Technology. 3.2. Conversion of Rights to Non-Exclusive. Notwithstanding the provisions of Section 3.1, if Integra (i) fails to timely pay any Minimum Payments due under Section 2.4 for any Minimum Payment Period or (ii) fails to make the payments described in Sections 2.1, 2.2, or 2.3 when due, or otherwise defaults under any provision of this Agreement, the exclusive Rights granted to Integra under Section 3.1 shall, at the option of PcoMed, to be exercised in PcoMed's sole and absolute discretion at any time, convert to a non-exclusive arrangement provided that PcoMed gives Integra written notice of its breach and Integra does not cure such breach within forty-five (45) days following Integra's receipt of such notice. If PcoMed makes such election, the Right shall be a nonexclusive right at the end of such 45-day cure period, and PcoMed may thereafter allow other Third Parties to use the PcoMed Surface Modification Technology in products that are in competition with the Integra Products. 3.3. Exclusive Coating. Integra (i) shall not apply or have applied any other coating to any Integra Products treated with the PcoMed Surface
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Extract the exact clause related to "Expiration Date" from the excerpt above.