20 years
- What are the requirements for the US invention patent application documents
- Is it possible to apply for a combined appearance in a U.S. industrial design application?
- How long does it take to authorize an industrial design in the United States?
- How long is the protection period of American industrial design?
- What are the requirements for US design application documents
- Whether the US invention patent application can be DAS
- Novelty Grace Period for U.S. Invention Patent Application
- Can the priority right of a U.S. invention patent application be restored?
- US Invention Patent Application Authorization and Annual Fee Instructions
- Is the U.S. industrial design application convertible?