Does the patent have a term of protection? What will happen after the patent protection period expires?

Does the patent have a term of protection? Of course there is. In patent application, the term of protection refers to the term of patent protection after the patent is granted the right. So what happens when the patent protection period expires? Does the patent have a term of protection? What will happen after the patent protection period expires? Does the patent have a term of protection? What will happen after the patent protection period expires? The term of protection refers to the term of patent protection after the patent right is granted in the patent application. Among them, the protection period of invention patent right is 20 years, and the protection period of utility model patent right and design patent right is 10 year. This shows that once an invention is patented, it can only be protected by law for 20 years at most. After this period of time, your inventions and technological innovations will be placed in the public domain and contributed to society for free. After applying for a patent, it means that your invention will be made public and anyone can easily obtain your technology. Although it can be protected by law, this protection is strictly limited by legal provisions. In China, a vast country, there are bound to be great obstacles in protecting patent rights nationwide. Article 11 of the Patent Law After the patent right for invention and utility model is granted, except as otherwise provided in this Law, no unit or individual may exploit the patent without the permission of the patentee, that is, it may not manufacture, use, promise to sell, sell or import its patented products for production and business purposes, nor may it use its patented methods and use, promise to sell, sell or import products directly obtained according to the patented methods. After the design patent is granted, no unit or individual may exploit its patent without the permission of the patentee, that is, it may not manufacture, promise to sell, sell or import its patented product for production and business purposes. This article is protected by the patent law. As can be seen from its wording, the real starting date of protection is from the date of authorization; So that is to say, the real protection date is not ten or twenty years, but less than this time. The termination date is also mentioned in China's patent law. Article 44 In any of the following circumstances, the patent right shall be terminated before the expiration of the time limit: (1) Failing to pay the annual fee as required; (2) The patentee waives his patent right in writing. In these two cases, the patent terminates, and of course there is a third case, that is, the patent expires and the protection naturally terminates. Then we finally concluded that the protection period of a patent is shorter than the patent period, the starting date is the patent authorization announcement date, and the termination date depends on the patentee, but the longest time is the termination date of the patent period.