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
20 years
The initial protection period is 4 years, which can be extended for two consecutive three years, and the maximum protection period is 10 years.
A 12-month novelty grace period is available if:
- The designer, his legal successor, or a third party arising from the information or activities of the designer or his legal successor
- Third party that harms the interests of the designer
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 31 months from earliest priority date.
- Validation of European Patent in EPO member states: 3 months from the date of European patent grant
1 month
Reinstatement of priority on grounds of "due care" and "unintentional/due care" accepted.
A 12-month novelty grace period is available if:
- The applicant authorizes others to use
- manifest misuse by a third party
no
The BPO conducts formality examination of design patent applications.
no