Photochromic spirodihydrophenanthropyrans

Details for Australian Patent Application No. 2006312738 (hide)

Owner Rodenstock GmbH

Inventors Rohlfing, Yven; Weigand, Udo; Melzig, Manfred

Agent Cullen & Co

Pub. Number AU-A-2006312738

PCT Pub. Number WO2007/054240

Priority 10 2005 053 986.6 10.11.05 DE

Filing date 3 November 2006

Wipo publication date 18 May 2007

International Classifications

C07D 311/78 (2006.01) Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings

Event Publications

5 June 2008 PCT application entered the National Phase

  PCT publication WO2007/054240 Priority application(s): WO2007/054240

18 November 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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