What is the function of a cease/desist notice?

The function of a cease and desist notice is to demand that a party stop an alleged illegal activity, particularly when it involves trademark infringement. This legal document is often used by trademark owners to protect their rights when they believe that someone else is using their mark without permission, which can lead to consumer confusion or dilution of the brand. By sending this notice, the trademark owner signals their intent to take action and requests the infringing party to cease any activities that violate their trademark rights.

The other options, while related to trademark processes, do not describe the purpose of a cease and desist notice. For example, formally accepting a trademark application is a function performed by the USPTO, not through a cease and desist notice. Providing evidence for a trademark application pertains to supporting documentation needed during the application process, whereas a cease and desist notice is a separate legal action. Renewing an expired trademark involves filing specific forms and paying fees to the USPTO, which again is not related to the nature of a cease and desist notice. Thus, the correct answer accurately reflects the primary function of this legal tool in trademark law.