PCT Calculator 


 
Priority date
PCT/Paris Convention application filing deadline:
PCT Priority documents due:
Demand due:
National phase entries due under Chapter I:
21 month deadline:
Final deadline for Chapter I entry in Canada:
National Phase entries due under Chapter II:
31 month deadline:
Final deadline for Chapter II entry in Canada:

NB:  Use of this tool is no substitute for a good understanding of the Patent Cooperation Treaty and its applicability in various signatory states.  The deadlines calculated hereon should not be relied upon without verifying their accuracy with a qualified PCT attorney.  We are pleased to provide you with case specific advice upon your request.

 

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