- 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.
- How long is the PCT period for Bulgarian invention patent application
- What are the requirements for the utility model application documents in Bulgaria?
- Is a Bulgarian industrial design application eligible for DAS?
- How long is the PCT deadline for utility model applications in Bulgaria?
- Whether the Bulgarian invention patent application can be type-converted
- How long is the application period for industrial design in Bulgaria?
- What are the requirements for the Bulgarian invention patent application documents
- Which is the competent authority for patent applications for inventions in Bulgaria
- Novelty grace period for utility model applications in Bulgaria
- Bulgarian utility model application authorization and annual fee instructions