20 years
- Which is the competent authority for utility model applications in Bulgaria?
- Bulgarian utility model application authorization and annual fee instructions
- How long does it take to authorize an industrial design in Bulgaria?
- Features of the Bulgarian invention patent application process
- Is a Bulgarian industrial design application eligible for DAS?
- Is a utility model application in Bulgaria eligible for DAS?
- What are the requirements for the utility model application documents in Bulgaria?
- Is a Bulgarian invention patent application eligible for DAS
- Is a Bulgarian industrial design application convertible?
- Bulgarian invention patent application authorization and annual fee instructions