20 years
- Is it possible to apply for a combined appearance in a U.S. industrial design application?
- Can the priority right of a U.S. invention patent application be restored?
- Novelty Grace Period for U.S. Industrial Design Applications
- How long is the deadline for US industrial design application
- Novelty Grace Period for U.S. Invention Patent Application
- Whether the US invention patent application can be DAS
- US design authorization and annual fee instructions
- How long is the PCT period for US invention patent application?
- How long does it take to authorize an industrial design in the United States?
- What are the requirements for the US invention patent application documents