no
yes. The type of patent can be changed from invention to utility model within 30 days of receiving the grant/rejection decision, and the corresponding fee should be paid.
Restoration of priority will not be accepted.
1-2 years
KIPO conducts formality examination and substantive examination of utility model patent applications, but only needs to meet the standards of novelty and practicality, and does not require inventive step.
no
- via Paris Convention : 6 months from earliest priority date.
- Hague Agreement route: 6 months from earliest priority date.
no
no
20 years
If the following situations occur 12 months before the patent application/priority date by the inventor, applicant or assignee:
- By correspondence, or publicly at national or international exhibitions
Disclosure due to malicious disclosure by a third party
The novelty grace period can be enjoyed, and the applicant needs to submit corresponding evidence support when submitting the application.