The answer is that ABCD cannot be used as a trademark.

This is our country's regulations on trademarks:

(1) identical with or similar to the name, national flag, national emblem, military flag and medal of People's Republic of China (PRC);

(2) identical with or similar to the name, national flag, national emblem or military flag of a foreign country;

(3) identical with or similar to the flag, emblem and name of an intergovernmental international organization;

(4) identical with or similar to the symbols and names of the Red Cross and the Red Crescent;

(5) The common name and figure of the commodity; (The so-called generic name refers to a name that has been widely used in a certain industry in a certain region and recognized by traders. General graphics refers to the general commodity graphics in this industry. Due to the lack of obvious characteristics of common names and common graphics, it is impossible to apply for registration as a trademark. )

(6) directly indicate the quality of the product.

I know id, the law is blind. I'm happy to answer your question.

If you have any questions, please ask.

Please adopt those that have reference value.