I will file provisional patent, then publish it. Can I file PCT application after that based on US provisional priority date?
If yes, what is the maximum time I can have before filing PCT application? Is that 12 months or more?
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Under the terms of the Paris Convention you would have one year to file the PCT from the day the first U.S. application on the subject matter was filed regardless of the type of application filed. It is the same amount of time as a U.S. provisional lasts but comes from an entirely unrelated part of the patent system.– George White ♦Commented Jul 10, 2014 at 5:55
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Yes you can. You must file the PCT claiming priority to the US provisional's filing date within 12 months from the day you file the provisional. The same is true if you also want to file a US non-provisional application (i.e., one that will be examined) based on the provisional.
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Can you please clarify your answer? Reason is that I can't find anything about 12 months in wipo.int/export/sites/www/pct/en/texts/pdf/pct.pdf Commented Oct 1, 2016 at 3:26