Filing Language: Japanese | |
| via Paris Convention | via Nationalization of PCT |
Necessary documents:
| Necessary documents:
|
Attachments (if any)
| Attachments (if any)
|
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
20 years, and the validity period of patents for pharmaceutical inventions and pesticide inventions can be extended to 25 years upon application.
- Inventions under the via Paris Convention : 12 months from the earliest priority date.
- via Nationalization of PCT inventions: 30 months from the earliest priority date.
yes
yes.
- Within 3 years from the filing date, the patent type can be changed from utility model to invention upon request of the applicant
- Utility model patents can be converted to design patents at any time
A conversion fee shall be paid for patent type conversion. Once the original patent application is converted, it will be deemed withdrawn.
Inventors have a novelty grace period of 12 months after disclosure (including sale).
Reinstatement of priority is accepted on grounds of "due care."
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.
yes