20 years
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
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).
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 .
no
4-6 months
2-5 years
20 years
The BPO conducts formality examination of design patent applications.
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
1 month