The first day of the semester (start date) is not included in the entrance period. If calculated in years or months, the expiration date shall be the corresponding day of the last month; If there is no corresponding day in the current month, the last day of the current month shall be the due date. If the due date is a legal holiday, the first working day after the holiday shall be the due date. Legal holidays refer to New Year's Day (one day), Spring Festival (three days), International Labor Day (three days) and National Day (three days); Legal holidays refer to Saturday and Sunday every week. 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.
Legal objectivity:
In Article 42 of the Patent Law of People's Republic of China (PRC), the patent right for invention is 20 years, the patent right for utility model is 10 year, and the patent right for design is 15 year, all of which are counted from the date of application. Where a patent for invention is granted for four years from the date of application for a patent for invention and three years from the date of request for substantive examination, the patent administration department of the State Council shall, at the request of the patentee, compensate for the unreasonable delay of the invention patent in the process of authorization, except for the unreasonable delay caused by the applicant. In order to compensate for the time occupied by the review and approval of new drugs, the patent administration department of the State Council shall compensate the patentee for the patent term of new drug-related invention patents that have been approved for listing in China. The compensation period shall not exceed five years, and the total effective patent right period after the new drug is approved for marketing shall not exceed fourteen years.