Patents are different from trademarks. Patents only have the date of announcement, and there is no announcement period and objection period. Only after the patent is authorized can the patent be declared invalid.
2. The authorization announcement is an announcement.
3. The utility model and design are disclosed only once, that is, on the date of announcement, and kept confidential before the date of announcement;
Inventions are always made public twice, the first time after the preliminary examination and before the actual trial, which is called publication, and the second time after the actual trial, which is called announcement, that is, when the invention patent takes effect. This is determined by the system of early disclosure and delayed review.
4. I'm sorry, but I don't know what the "returned instruction" means. However, what this sentence means is that the paragraph number is based on the text published in China National Intellectual Property Administration, which can't be wrong.
Please use it with caution when actively modifying.