How can I figure out if PCT/AU2012/001589 is granted or not?

There is a prior art case with US 2,223,561 A patented in 1939, but I don't know how to track that case.

  • No need to "track" US 2,223,561, it's been expired for something like 60 years.
    – Eric S
    Jan 25, 2017 at 18:13

3 Answers 3


This is basically an Australian App -
PCT Reference: Application Number:PCT/AU2012/001589

The equivalent US App is US 2014-0370781 A1 The Public PAIR for the US App has the status as "Docketed New Case - Ready for Examination"

To track the application go to http://portal.uspto.gov/pair/PublicPair and type in the "Publication Number"

  • thank you - yes it is a PCT Application. BTW, what is a PCT Patent? Never heard of it. The countries' /regional Patent Office prosecute the PCT Application into a patent for their jurisdiction - where does PCT Patent happen?
    – abhi-rao
    Sep 2, 2015 at 16:18
  • The original application was filed in Australia, but it is a PCT application.
    – Parker
    Sep 2, 2015 at 19:51
  • I should have said "application", not "patent". The process is described here, specifically the overview figure.
    – Parker
    Sep 2, 2015 at 19:52

This PCT patent is currently in the National Phase, which means there are publications in multiple countries, each with its own status. You can find these on the "National Status" tab of the page you linked to:

Office                   Entry Date  National Number  National Status
Australia                03.07.2014  2012357650       Published: 24.07.2014
Canada                   02.06.2014  2857701          
European Patent Office   18.06.2014  2012859200       
United States of America 03.06.2014  14362446         Published: 18.12.2014

Each country has its own system for managing the publications. The USPTO provides US legal status via Public Pair. The Canadian and Australian patent systems have the status built into the web pages linked to from PatentScope and are easier to find. The EPO system is a little more complex, but the information is available on the Legal Status and Event History pages.

  • thanks again Vallismortis. What about the rest of the world? South America for example? It depends on the US system? Sep 2, 2015 at 12:38
  • @CristobalCerda The last time I checked, there were over 80 patent authorities in different countries, and they have no dependency on the US system. Many of them are member states to the Patent Cooperation Treaty (PCT) but some are not. I can't account for them all, but the WIPO patent National Status is the definitive place to look for PCT patents.
    – Parker
    Sep 2, 2015 at 14:13
  • The PCT now has 148 member states.
    – Parker
    Sep 3, 2015 at 0:23
  • Not to be too picky, but I believe this is an application, not a patent.
    – Eric S
    May 20, 2018 at 14:19

Please go to the link https://patentscope.wipo.int/search/en/detail.jsf?docId=US128465182

You will see the following (and more): Application Number: 14362446 Application Date: 21.12.2012 Publication Number: 20170245476 Publication Date: 18.12.2014 Grant Number: 09826721 Grant Date: 28.11.2017

You are interested in the the grant date mentioned here.

Alternate method use google : https://patents.google.com/patent/US20170245476/pt-pt

On the right hand side you will see: the granted patent number : US9826721B2 and the granted patent date: 2017-11-28

You could get this information from espacenet (https://worldwide.espacenet.com/?locale=en_EP) or any other public domain database easily.

If you need to know the status of the application in a particular country you will need to use the global dossier

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