- Grant fee: The applicant shall pay the granted fee within 3 months after receiving the granted notice.
- Annuity: pay year by year from the first year of the application date, and should be paid before the last day of the month of the application date at the latest, not exceeding one patent year, and the annual fee can be paid within a grace period of 6 months if it is overdue, and paid at the same time 200% late fee.
- Novelty grace period for utility model applications in Bulgaria
- Features of the Bulgarian design patent application process
- Bulgarian utility model application authorization and annual fee instructions
- How long is the PCT deadline for utility model applications in Bulgaria?
- Is a Bulgarian industrial design application eligible for DAS?
- How long is the application period for industrial design in Bulgaria?
- How long is the protection period of industrial design in Bulgaria?
- Bulgarian invention patent application authorization and annual fee instructions
- Whether the Bulgarian invention patent application can be type-converted
- Is it possible to apply for a combined appearance for a Bulgarian industrial design application