- Grant fee: It will be paid together with the granted announcement fee one month after receiving the granted notice, and the payment will be doubled if it is overdue.
- Annuity: The renewal fee payment period is the corresponding date of the application date in the year, and can be paid within the last year of the current validity period. Payment can still be made within 6 months from the overdue date, subject to a penalty.
- Bulgarian invention patent application authorization and annual fee instructions
- Bulgarian utility model application authorization and annual fee instructions
- What are the requirements for the utility model application documents in Bulgaria?
- How long does it take to authorize an industrial design in Bulgaria?
- Whether the Bulgarian invention patent application can be type-converted
- How long is the protection period for utility model applications in Bulgaria?
- How long does it take to grant a Bulgarian invention patent application
- Can the priority right of utility model application be restored in Bulgaria?
- How long is the PCT deadline for utility model applications in Bulgaria?
- Is a Bulgarian industrial design application eligible for DAS?