- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 31 months from earliest priority date.
- Novelty grace period for industrial design applications in Bulgaria
- Bulgarian utility model application authorization and annual fee instructions
- Novelty grace period for utility model applications in Bulgaria
- Which is the competent authority for utility model applications in Bulgaria?
- Can the priority right of utility model application be restored in Bulgaria?
- How long is the PCT period for Bulgarian invention patent application
- Features of the Bulgarian invention patent application process
- How long does it take to grant a Bulgarian invention patent application
- Features of the Bulgarian design patent application process
- How long is the application period for industrial design in Bulgaria?