Trademark "withdrawal for three years" means that if a registered trademark has not been used for three consecutive years without justifiable reasons, any unit or individual can apply to the Trademark Office to cancel the registered trademark.

Therefore, the way to prevent the withdrawal of trademarks is to continue and effectively use registered trademarks.

According to the judgment on trademark use in the "Trademark Examination and Trial Standards":

5.3.1 The use of a trademark refers to the commercial use of the trademark. This includes using trademarks on commodities, commodity packaging or containers, and commodity transaction documents, or using trademarks in advertising, exhibitions, and other commercial activities to identify the source of commodities.

5.3.2 The specific forms of trademark use on designated goods include:

(1) Directly attaching, engraving, branding or weaving to attach the trademark to goods, The trademark is used on product packaging, containers, labels, etc., or on additional product labels, product instructions, introduction brochures, price lists, etc.;

(2) The trademark is used on transaction documents related to the sale of the product, Including use on commodity sales contracts, invoices, bills, receipts, commodity import and export inspection and quarantine certificates, customs declaration documents, etc.;

(3) The trademark is used on radio, television and other media, or in publicly issued Publishing in publications, and advertising the trademark or goods using the trademark through billboards, mailing advertisements or other advertising methods;

(4) The use of the trademark at exhibitions and expositions, including in exhibitions Printed materials and other materials using the trademark provided at conferences and expositions;

(5) Other forms of trademark use that comply with legal provisions.

5.3.3 The specific forms of trademark use in designated services are:

(1) The trademark is directly used in service venues, including introduction brochures and service venue signboards used for services , store decoration, staff clothing, posters, menus, price lists, lottery tickets, office stationery, letterheads and other supplies related to the designated service;

(2) The trademark is used on documents related to the service materials, such as invoices, remittance receipts, service provision agreements, repair and maintenance certificates, etc.;

(3) The trademark is used in media such as radio and television, or published in publicly issued publications, and Billboards, mail advertisements or other advertising methods for trademarks or services using trademarks;

(4) Use of trademarks at exhibitions and expos, including use provided at exhibitions and expositions Printed materials and other materials of the trademark;

(5) Other forms of trademark use that comply with legal provisions.

Therefore, it is necessary to retain evidence of the use of the above-mentioned trademarks to prevent others from filing trademark "withdrawal" claims.