In reference to the patent: WO2002019867A1
Is this patent still valid and if so when does it expire? Does it cover U.S.?
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1Possible duplicate of Is this patent valid? Granted? Which countries does it cover? Are there family members?– user18033Commented Feb 26, 2017 at 19:39
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The cited document is only an application. I can't find an associated patent, but I'm not an expert at world applications.– Eric SCommented Mar 3, 2017 at 17:00
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1 Answer
The document in question is an international ("PCT") application; it is not a granted patent. This application was never brought into the US as a national phase application.
There is a time limit of 30 months to bring this application into the US: https://www.uspto.gov/web/offices/pac/mpep/s1842.html
This application, filed in September 2000, is long past that deadline. In short, this application has not and will not become a granted patent in the US or anywhere else.
