1. system change: trademark laws, regulations or systems may change in different years. The Trademark Registration Certificate of 20 13 did not specify the category of approval, which may be the convention stipulated at that time and related to subsequent changes.
2. Management loopholes: In some cases, there may be omissions in the management or review process, resulting in the information of the approved category not being correctly recorded on the trademark registration certificate.
3. Technical problem: In the process of printing or making the Trademark Registration Certificate, due to technical or human reasons, the approved category information was not added correctly.
4. Special circumstances: In some special circumstances, the information of approved categories may not be directly displayed on the trademark registration certificate because the trademark involves multiple categories or other reasons.
In order to accurately understand why there is no approved category on the trademark registration certificate of 20 13, it is suggested to inquire about the laws and regulations at that time or contact the relevant trademark registration bureau for details.
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