PHOTOCHROMIC NAPHTHOPYRAN COMPOUNDS: COMPOSITIONS AND ARTICLES CONTAINING THOSE NAPHTHOPYRAN COMPOUNDS

Details for Australian Patent Application No. 2002357749 (hide)

Owner VISION-EASE LENS, INC.

Inventors QIN, Xuzhi

Pub. Number AU-A-2002357749

PCT Number PCT/US02/37469

PCT Pub. Number WO2003/044022

Priority 10/038,350 20.11.01 US

Filing date 20 November 2002

Wipo publication date 10 June 2003

International Classifications

C07D 493/04 Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system

Event Publications

3 April 2003 Complete Application Filed

  Priority application(s): 10/038,350 20.11.01 US

21 August 2003 Application Open to Public Inspection

  Published as AU-A-2002357749

5 August 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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