- 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.
yes. Designs in the same category, or belonging to the same set or combination of articles, may contain several designs in one design (this condition does not apply when the product containing or attached to the design is an ornament).
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
yes. For an invention with the same subject matter, the applicant may file a patent type conversion request within 2 months from the date of receiving the patent application decision, but no later than 10 years from the application date, and change the patent type from invention to utility model .
Reinstatement of priority on grounds of "due care" and "unintentional/due care" accepted.
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.
2-5 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.
no
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