After the trademark registration certificate expires, you can take the following steps to deal with it:

1. Check the validity period of the trademark registration certificate: First, confirm the validity period of the trademark registration certificate and ensure that it has expired.

2. Renew the trademark registration certificate: If the trademark registration certificate has expired, but you want to continue to maintain the validity of the trademark, you may consider applying for the renewal of the trademark registration certificate. Renewal usually needs to be carried out within a period of time before the trademark registration certificate expires. The specific time depends on the relevant regulations of each country or region. You can consult a professional trademark agency or lawyer who will guide you on how to apply for renewal of your trademark registration certificate.

3. Reissue procedures: If the trademark registration certificate has expired for a long time, it may not be renewed, and you may need to go through reissue procedures. The specific procedures and requirements for reissue procedures may vary from country to country or region. You should consult the local trademark registration office or a professional trademark agency or lawyer to learn about the specific requirements and procedures for reissue procedures.

4. Comply with regulations and laws: According to the regulations of different countries or regions, there may be a certain grace period or recovery period after the trademark registration certificate expires. You should act in a timely manner and comply with relevant regulations and laws.

Please note that the expiration process of trademark registration certificates may vary by country and region. Therefore, in specific operations, it is recommended that you consult the local trademark registration office, a professional trademark agency or a lawyer to ensure that the steps you take comply with local laws and regulations and maintain the validity of your trademark.

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