When must a patent application be filed before the first public disclosure or offer for sale?
Almost everywhere in the world, except the United States, a patent application must have a priority date before the first public disclosure. Filing a patent application in any country ascribing to the Patent Cooperation Treaty gives the priority date. One invention may have multiple priority dates.
Related Questions
- After I submit an Invention Disclosure Form (IDF) to AP&C, how long will it be before I know whether or not a patent application (or other type of application) will be filed?
- When must a patent application be filed before the first public disclosure or offer for sale?
- What happens if an invention is made public before a patent application is filed?
