20 years
- Novelty Grace Period for Vietnam Invention Patent Application
- Instructions for Authorization of Utility Model Application and Annual Fee in Vietnam
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- What are the requirements for utility model application documents in Vietnam?
- Instructions for Authorization and Annual Fee of Vietnam Invention Patent Application
- How long is the protection period for utility model applications in Vietnam?
- Can the priority right of utility model applications be restored in Vietnam?
- Is a utility model application in Vietnam eligible for DAS?
- How long is the protection period of Vietnamese invention patent application