The starting date of this patent is subject to the earlier application. The starting date is 1, 2000, and the application is made in the United States.
The application filed in China in March 2000 belongs to the scope of priority claim. The filing date issued by China Patent Office is June 5438, 2000+10. It won't be March/
Generally, it takes 20 years to invent. The utility and appearance are 65,438+00 years. This China is consistent with many countries. At present, the patent laws of all countries are close to international practice, which is roughly the case.