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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.
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Bulgarian Patent Office
English: Bulgarian Patent Office, abbreviation: BPO
Website: Патентното ведомство на Република България (bpo.bg)
Bulgarian invention patent search: BPO Online - portal.bpo.bg
1 month
Reinstatement of priority on grounds of "due care" and "unintentional/due care" accepted.
A novelty grace period of 6 months is available if:
- The applicant or the original right holder obviously abused the
- Exhibited by the applicant or the original right holder at an official or officially recognized exhibition
The BPO only conducts formality examination of utility model patent applications. The formality examination takes 3 months, and the content of the examination includes whether the applied for utility model patent application belongs to the object of protection, the issue of unity, etc. If the granted conditions are met, the patent is authorized.
It is protected for 10 years from the date of application, and can be renewed for 3 times, each time for 5 years, with a maximum protection of 25 years.
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The BPO conducts formality examination of design patent applications.