Reinstatement of priority on grounds of "due care" accepted.
Inventors have a novelty grace period of 12 months after disclosure (including sale).
Inventors have a novelty grace period of 12 months after disclosure (including sale).
Japan Patent Office
English: Japan Patent Office, abbreviation: JPO
Website: Japan Patent Office (jpo.go.jp)
Japanese Utility Model Patent Search: Japan Platform for Patent Information｜J-PlatPat [JPP] (inpit.go.jp)
25 years
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 Once the original patent application is converted, it will be deemed withdrawn.
- via Paris Convention : 6 months from earliest priority date.
- Hague Agreement route: 6 months from earliest priority date.
Reinstatement of priority is accepted on grounds of "due care."
yes
3-6 months
The design does not lose its novelty if it is disclosed by the designer in Japan within 12 months from the filing date/priority date.