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.
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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.
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
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"