Is the prosecution period valid after the patent is declared invalid?

In patent infringement cases, especially those involving utility model and appearance patent disputes, the most common and effective defense is invalid defense. When the patentee brings a patent infringement lawsuit to the people's court, in order to gain more time to respond, the defendant usually requests the patent reexamination board to declare the patent invalid for the patent involved. Since the invalidation procedure usually takes about 6 months from the request to the decision of invalidation, it is still valid within 6 months. I hope I can help you ~