Can the priority right of Japanese invention patent application be restored?

1-2 years

20 years, and the validity period of patents for pharmaceutical inventions and pesticide inventions can be extended to 25 years upon application.

yes

yes. Within 3 years from the date of application, or within 3 months from the date of receipt of the rejection decision, the patent type can be changed from design to invention/utility model at the request of the applicant.

A conversion fee shall be paid for patent type conversion. Once the original patent application is converted, it will be deemed withdrawn.

yes

Inventors have a novelty grace period of 12 months after disclosure (including sale).

3-6 months

• via Paris Convention : 6 months from earliest priority date.
• Hague Agreement route: 6 months from earliest priority date.

The JPO conducts formality examination and substantive examination of invention patent applications. The applicant should submit a request for substantive examination within 3 years from the filing date. The JPO makes an granted decision if it determines after review that no grounds for refusal have been found.