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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pay PcoMed $*** ( *** US dollars) upon full execution of this Agreement. (b) Second Payment. Integra shall pay PcoMed $*** ( *** US dollars) within 30 days after Notice of Initial Acceptance of First Product Order. Integra shall place the First Product Order within sixty (60) days of the Effective Date of this Agreement. 5 *** Portions of this page have been omitted pursuant to a request for Confidential Treatment filed separately with the Commission. 2.2. Fees. (a) Treated Integra Products. Subject to Section 2.2(c), for so long as the Agreement has not been converted to a non-exclusive arrangement under the provisions of Section 3.2, Integra shall pay PcoMed a Fee of ***% of Net Sales of all Treated Integra Product Sold by Integra or its Affiliates. Subject to Section 2.2(c), for so long as Integra's Rights under the Agreement have been converted to a non-exclusive arrangement under the provisions of Section 3.2, Integra shall pay PcoMed a Fee of ***% of Net Sales of all Treated Integra Product Sold by Integra or its Affiliates. The Fee rate payable shall be determined based on whether this Agreement is exclusive or non-exclusive at the time of Integra's Sale of the Treated Integra Product, not at the time of PcoMed's production of the Treated Integra Product. (b) Partially Treated Integra Products. Subject to Section 2.2(c), for so long as Agreement has not been converted to a non-exclusive arrangement pursuant to Section 3.2, Integra shall pay PcoMed a Fee of ***% of Net Sales of all Partially Treated Integra Product Sold by Integra or its Affiliates. Subject to Section 2.2(c), for so long as Integra's rights under the Agreement have been converted to a non-exclusive arrangement under the provisions of Section 3.2, Integra shall pay PcoMed a Fee of ***% of Net Sales of all Partially Treated Integra Product Sold by Integra or its Affiliates. The Fee rate payable shall be determined based on whether this Agreement is exclusive or non-exclusive at the time of Integra's Sale of Partially Treated Integra Product, not at the time of PcoMed's production of the Partially Treated Integra Product. (c) Fee Adjustment. The Fees may be subject to reduction according to the provisions of Sections 8.5 and 10.1. If it becomes necessary for Integra to settle a Third Party patent infringement suit covered by Section 10.1 (i), solely because of any action or omission of PcoMed or because of Third Party claims against PcoMed Surface Modification Technology and/or such settlement involves obtaining a license from a Third Party, in order to make, have made, import, export, use, offer for Sale, or Sell a Treated Integra Product or a Partially Treated Integra Product in the Field, then Integra may offset, dollar for dollar, against Fees up to *** percent (***%) of Integra's reasonable, out-of-pocket expenses, costs, fees (including reasonable attorneys' fees), and other consideration related to the investigation, negotiation and settlement paid by Integra to such Third Party to obtain such settlement or license with respect to the PcoMed Surface Modification Technology. The parties agree that, to the extent Fees are reduced pursuant to this Agreement, for purposes of determining the contribution toward the Minimum Payments, the Fee shall be counted as if it had not been reduced. (d) Payment. All Fees shall be due and payable quarterly as provided in Section 6.1. 2.3. *** Run Fees. (a) For Distribution. Integra shall pay PcoMed a flat *** Run Fee of $*** (*** US dollars) for each *** Run in which a maximum of one hundred (100) Non-Treated Integra Product are converted by PcoMed to Treated Integra Product 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
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Extract the exact clause related to "Expiration Date" from the excerpt above.