When a registered trademark is declared invalid, the exclusive right to use the trademark is deemed to have never existed from the beginning. The decision or ruling declaring the registered trademark invalid has no retroactive effect, that is, the decision or ruling declaring the registered trademark invalid shall not matter. What happened in the past will only have effect on what happens after it takes effect. 1. Is there a sample sample for trademark invalidation defense? Documents that should be submitted for trademark opposition defense: (1) Trademark opposition application; (2) Clear request and factual basis, together with relevant evidence materials; (3) Preliminary review of the opposed trademark A copy of the approval announcement; (4) The identity certificate of the opponent. (5) If you entrust a trademark agency to handle trademark opposition applications, you must also submit a trademark agency power of attorney. Anyone has the right to raise objections to a trademark during the preliminary announcement period. After the objection is accepted, the Trademark Office will issue a "Trademark Objection Reply Notice" to the opposed party, and will attach the reasons for the trademark objection. The opposed party will receive the trademark objection After the defense notice, you can make a defense one by one based on the objection reasons raised by the other party. The defense is voluntary and the Trademark Office does not charge fees. 2. If an objection is raised to a trademark that has been preliminarily approved and announced in accordance with Article 35 of the Trademark Law, The Trademark Office shall listen to the facts and reasons stated by the opponent and the opposed party, and after investigation and verification, make a decision on whether to approve registration within twelve months from the expiration of the announcement period, and notify the opponent and the opposed party in writing. If there are special circumstances that require an extension, it can be extended for six months with the approval of the industrial and commercial administration department of the State Council. If the Trademark Office makes a decision to approve registration, it will issue a trademark registration certificate and make an announcement. If the opponent is dissatisfied, he may request the Trademark Review and Adjudication Board to declare the registered trademark invalid in accordance with the provisions of Articles 44 and 45 of this Law. If the Trademark Office makes a decision not to register and the opponent is dissatisfied, he or she may apply to the Trademark Review and Adjudication Board for review within fifteen days from the date of receipt of the notice. The Trademark Review and Adjudication Board shall make a review decision within twelve months from the date of receipt of the application, and notify the opponent and the opposed party in writing. If there are special circumstances that require an extension, it can be extended for six months with the approval of the industrial and commercial administration department of the State Council. If the opposed party is dissatisfied with the decision of the Trademark Review and Adjudication Board, it may file a lawsuit with the People's Court within thirty days from the date of receipt of the notice. The people's court shall notify the opponent to participate in the litigation as a third party. During the review process in accordance with the provisions of the preceding paragraph, the Trademark Review and Adjudication Board may suspend the review if the determination of the prior rights involved must be based on the outcome of another case that is being heard by the people's court or is being handled by the administrative agency. After the reasons for the suspension are eliminated, the review process should be resumed. When we conduct some business activities, we often encounter various legal issues. Some of these issues involve business secrets or competition in the same industry, and some involve legal issues. For us, no matter in Whether you are working in a company or running your own business, you need to have a certain understanding of some legal documents and terms such as trademarks to better operate legally.