premise: 8. All materials (including, without limitation, documents, drawings, models, apparatus, sketches, designs and lists) furnished to one party by the other, and which are designated in writing to be the property of such party, shall remain the property of such party and shall be returned to it promptly at its request, together with any copies thereof. 9. This Agreement shall govern all communications between the parties that are made during the period from the effective date of this Agreement to the date on which either party receives from the other written notice that subsequent communications shall not be so governed, provided, however that each party's obligations under Sections 2 and 3 with respect to Confidential Information of the other party which it has previously received shall continue unless and until such Confidential Information falls within Sections 4 or 5. 10. Neither party shall communicate any information to the other in violation of the proprietary rights of any third party.  Neither party acquires any licenses under any intellectual property rights of the other party under this Agreement. 