2-amino-9-(2-substituted ethyl)purines and preparing methods for 9-(4-acetoxy-3-(acetoxymethyl)but-1-yl) - 2aminopurine using the same

Details for Australian Patent Application No. 2004246958 (hide)

International Classifications

Event Publications

3 November 2005 PCT application entered the National Phase

PCT publication WO2004/110343 Priority application(s): WO2004/110343

16 September 2010 Application Accepted

Published as AU-B-2004246958

20 January 2011 Standard Patent Sealed

19 January 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

25 October 2012 Section 223 Application Received

Kyungdong Pharm. Co., Ltd. An application to extend the time from 12 Jun 2011 to 12 Oct 2012 in which to pay a renewal fee has been filed . Address for service in Australia - Watermark Patent and Trade Marks Attorneys Level 2 302 Burwood Road Hawthorn VIC 3122

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