no
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 31 months from earliest priority date.
- Validation of European Patent in EPO member states: 3 months from the date of European patent grant
Reinstatement of priority on grounds of "due care" and "unintentional/due care" accepted.
Reinstatement of priority on grounds of "due care" and "unintentional/due care" accepted.
no
It is protected for 10 years from the date of application, and can be renewed for 3 times, each time for 5 years, with a maximum protection of 25 years.
A 12-month novelty grace period is available if:
- The applicant authorizes others to use
- manifest misuse by a third party
4-6 months
- via Paris Convention : 6 months from earliest priority date.
- The way of the Hague Agreement: The Hague Agreement will automatically take effect in Bulgaria after 6 months from the registration of the Hague Agreement.
- EU appearance route: 6 months from the earliest priority date.
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 31 months from earliest priority date.
The initial protection period is 4 years, which can be extended for two consecutive three years, and the maximum protection period is 10 years.