Legal analysis: the patent for utility model is valid for ten years. The utility model patent is one of three kinds of patents (invention, utility model and design), and utility model refers to a new practical technical scheme for the shape, structure or combination of products. The patent law requires lower creativity and technical level of utility model than invention patent, but it has great practical value. In this sense, utility models are sometimes called small inventions or small patents.
Legal basis: Article 42 of the Patent Law of People's Republic of China (PRC) has a term of 20 years, and the term of utility model patent and design patent is 10 years, counting from the date of filing. "