3663531

Information

• Patent Grant
• 3663531

• References
• Source

• Patent Number

  3,663,531

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • C09B43/40 - by substituting hetero atoms by radicals containing other hetero atoms
  • C09B43/11 - by introducing hydrocarbon radicals or substituted hydrocarbon radicals on primary or secondary amino groups
  • C09B56/005 - Azo-nitro dyes
  • Y10S8/922 - Polyester fiber

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing