| Filing Language: Japanese |
Necessary documents:
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Attachments (if any):
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Japan Patent Office
English: Japan Patent Office, abbreviation: JPO
Website: Japan Patent Office (jpo.go.jp)
Japanese Invention Patent Search: Japan Platform for Patent Information｜J-PlatPat [JPP] (inpit.go.jp)
5-7 months
Reinstatement of priority on grounds of "due care" accepted.
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 30 months from the earliest priority date.
yes
yes
- via Paris Convention : 6 months from earliest priority date.
- Hague Agreement route: 6 months from earliest priority date.
25 years
The JPO conducts formality examination only for utility model patent applications.
Inventors have a novelty grace period of 12 months after disclosure (including sale).