pHsensitive polymer and process for preparation thereof

Details for Australian Patent Application No. 2003288706 (hide)

Owner Council of Scientific & Industrial Research

Inventors Kulkarni, Mohan Gopalkrishna; Menjoge, Anupa Ramesh

Agent Lesicar Perrin

Pub. Number AU-B-2003288706

PCT Number PCT/IN2003/0003

PCT Pub. Number WO2005/056619

Filing date 15 December 2003

Wipo publication date 29 June 2005

Acceptance publication date 23 August 2007

International Classifications

C08F 220/12 (2006.01) Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof

C08F 246/00 (2006.01) Copolymers in which the nature of only the monomers in minority is defined

Event Publications

1 April 2004 Complete Application Filed

18 August 2005 Application Open to Public Inspection

  Published as AU-B-2003288706

23 August 2007 Application Accepted

  Published as AU-B-2003288706

3 January 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under reg. 22.2I(2). This application has been accepted or advertised accepted. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

21 February 2008 Section 223 Application Allowed

  Council of Scientific & Industrial Research The time in which to pay the acceptance fee has been extended to 23 Dec 2007. Address for service in Australia - Lesicar Perrin 49 Wright Street Adelaide SA 5000 2004

28 February 2008 Standard Patent Sealed

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