Section 765 ILCS 1036/35 - Assignments, changes of name or address and other instruments(a) Any mark and its registration under this Act shall be assignable with the goodwill of the business in which the mark is used, or with that part of the goodwill of the business connected with the use of and symbolized by the mark. Assignment shall be on a form furnished by the Secretary and may be recorded with the Secretary upon the payment of a recording fee of $5 payable to the Secretary who, upon recording of the assignment, shall issue in the name of the assignee a new certificate for the remainder of the term of the registration or of the last renewal thereof. An assignment of any registration under this Act shall be void as against any subsequent purchaser for valuable consideration without notice, unless it is recorded with the Secretary within 3 months after the date thereof or prior to such subsequent purchase.(b) Any registrant or applicant effecting a change of the name or address of the person to whom the mark was issued or for whom an application was filed may record, on a form furnished by the Secretary, a certificate of change of name or address of the registrant or applicant with the Secretary upon the payment of a recording fee of $5. The Secretary may issue in the name of the assignee a certificate of registration of an assigned application. The Secretary may issue in the name of the assignee, a new certificate of registration for the remainder of the term of the registration or last renewal thereof.(c) Other instruments which relate to a mark registered or application pending pursuant to this Act, such as, by way of example, licenses, security interests, or mortgages, may be recorded in the discretion of the Secretary, provided that instrument is in writing and duly executed.(d) Acknowledgement shall be prima facie evidence of the execution of an assignment or other instrument and when recorded by the Secretary, the record shall be prima facie evidence of execution. P.A. 90-231, eff. 1/1/1998.