Legal analysis: The seller and the buyer sign the Trademark Assignment Contract/Agreement; Trademark notarization is generally completed within 3-5 working days for trademark holders to obtain the Trademark Declaration Notary Certificate; Submit the prepared materials and notarial certificate to the Trademark Office, and then pay the transfer fee (usually 1 yuan); The Trademark Office will issue the acceptance letter in about 1-2 months and begin to review it; The Trademark Office will publish an announcement about 5-8 months after accepting the case and issue the Certificate of Approval to Transfer a Registered Trademark to both parties

Legal basis: Article 42 of the Trademark Law of the People's Republic of China * * * Where a registered trademark is transferred, the transferor and the transferee shall sign an assignment agreement and apply to the Trademark Office at the same time. The transferee shall guarantee the quality of the goods using the registered trademark.

where a registered trademark is transferred, the trademark registrant shall transfer the similar trademark registered on the same commodity or the same or similar trademark registered on similar commodities.

the trademark office will not approve the transfer that may easily lead to confusion or have other adverse effects, and notify the applicant in writing and explain the reasons.

after the transfer of a registered trademark is approved, it shall be announced. The transferee shall enjoy the exclusive right to use the trademark from the date of announcement.