How to retrieve the legal status of patent?

1. Search applicants fill in the application form for patent legal status search and submit a copy of patent certificate at the same time.

2. I checked the Application Form for Retrieval of Patent Legal Status and related materials, and the checklist will be faxed to China National Intellectual Property Administration in time.

China National Intellectual Property Administration copied a patent register and faxed it to our bureau.

4. Our bureau will issue a patent legal status search certificate based on the China National Intellectual Property Administration Patent Register, and affix the "Tianjin Intellectual Property Office's special seal for patent legal status search audit" at the seal of the issuing authority, and notify the applicant of patent legal status search in time.