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  • Can one use a priority date from one country in a second country?
  • Yes. There are two common modes of claiming a priority date. First, a priority date can be claimed in the filing papers if the application is filed in the second country within one year of the priority date. Second, a PCT application can be filed which extends the time to file in other countries up to 30 months from the priority date and in some countries even longer.

    Updated: 11/12/99
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