- 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.
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The initial protection period is 4 years, which can be extended for two consecutive three years, and the maximum protection period is 10 years.
Filing Language: Bulgarian Necessary documents:
- Exterior Design Picture (Six Views)
- A Brief Description
Attachments (if any):
- Power of Attorney
- Certified Priority Document
- Declaration of Ownership/Certification of Employment/Assignment of priority
- Assignment for Patent Right Transfer
- Application fee payment certificate
- 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.
The BPO conducts formality examination of design patent applications.
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- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 31 months from earliest priority date.
Reinstatement of priority on grounds of "due care" and "unintentional/due care" accepted.
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Bulgarian Patent and Trademark Office
English: Bulgarian Patent Office, abbreviation: BPO
Website: Патентното ведомство на Република България (bpo.bg)
Bulgarian Utility Model Patent Search: BPO Online - portal.bpo.bg