Patent rights: For invention patent applications filed starting from May 29, 2000, the U.S. Patent and Trademark Office will appropriately adjust the patent protection period according to the delay time of the Patent and Trademark Office or the inventor. For example: If a patent application is not approved within three years due to delays by the Patent and Trademark Office, the Patent and Trademark Office will add days exceeding three years to the patent term. For invention patents that were applied for before June 8, 1995 but were authorized after June 8, 1995 or are still valid on June 8, 1995, the patent protection period is the longer of the following two periods: starting from the date of authorization 17 years or 20 years from the date of application.

Copyright: United States: For published works after January 1, 1978, the copyright term begins from the completion of the author's creation until 70 years after the author's death and is protected by the Copyright Act. If there are multiple creators of a work, the copyright will expire 70 years after the death of the last creator.

If the work is anonymous or pseudonymous, the protection period is until 95 years after publication, or until 120 years from the date of creation. In addition, works that have not applied for registration are also protected by U.S. copyright-related laws. United Kingdom: The United Kingdom is the first country in the world to enact copyright law, and its copyright law is a model for copyright law in the common law system. All literary, dramatic, musical or artistic works, as long as they are first published in the UK or the author is a British national or resident, are protected by British copyright law without any formality.

UK copyright law only allows the use of works of art such as text, music, painting or sculpture "for the purposes of scientific research or private study". Therefore, in the UK, it is an infringement to use the author's work without his consent, even if it is solely for personal entertainment purposes. France

: The author has the right to exploit the work in any form and to derive financial benefit from it, including the right of performance and the right of reproduction. According to French copyright law, the author has a "resale right" to the copyright of an artistic work, that is, after the author's work is publicly auctioned or sold through a dealer, he still enjoys the non-transferable right to participate in distribution.

According to the Berne Convention: The copyright protection period generally recognized by various countries is 50 years.

In China, according to the "Trademark Law", the validity period of a registered trademark is ten years, calculated from the date of approval of registration. When a registered trademark expires, you can apply for renewal of registration.

I don’t know about the United States, but it varies from country to country. As long as it is renewed, the trademark right will always be protected by law