According to my country's "Patent Law", the following statements about utility models are correct ( ).
A. Utility model patent examination is subject to substantive examination
B. Utility model patent rights can be granted to liquid products
C. The term of utility model patent is 10 years, calculated from the date of authorization announcement
D. The utility model granted the patent right shall have novelty, creativity and practicality
E. Utility model is a modification of the shape, shape and practicality of the product. New technical solutions proposed by constructing or combining them
View answer analysis Correct answer DE
Answer analysis Utility models only undergo preliminary examination and do not conduct substantive examination. The objects of utility models can only be products with three-dimensional shapes and structures, and cannot be gaseous products or liquid products. The term of a utility model patent is 10 years, starting from the date of application. (P124, P171, P175)
Knowledge point of this question: utility model,