3567605

Information

• Patent Grant
• 3567605

• References
• Source

• Patent Number

  3,567,605

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1971
  54 years ago

• CPC

  • C07D311/92 - Naphthopyrans Hydrogenated naphthopyrans
  • C07D311/10 - unsubstituted
  • C07D311/58 - other than with oxygen or sulfur atoms in positions 2 or 4
  • C07D311/60 - with aryl radicals attached in position 2
  • G03C1/73 - containing organic compounds

• US Classifications

  • 204 - Chemistry: electrical and wave energy
  • 250 - Radiant energy