3883438

Information

• Patent Grant
• 3883438

• References
• Source

• Patent Number

  3,883,438

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1975
  49 years ago

• CPC

  • B01J20/28014 - characterised by their form
  • C02F1/285 - using synthetic organic sorbents
  • C02F1/286 - using natural organic sorbents or derivatives thereof
  • C09B41/00 - Special methods of performing the coupling reaction
  • C09B63/00 - Lakes
  • C09B69/02 - Dyestuff salts
  • C09K3/00 - Materials not provided for elsewhere
  • D06P1/12 - prepared in situ
  • D21H19/10 - Coatings without pigments

• US Classifications

  • 252 - Compositions
  • 008 - Bleaching and dyeing
  • 502 - Catalyst, solid sorbent, or support therefor: product or process of making
  • 521 - Synthetic resins or natural rubbers
  • 525 - Synthetic resins or natural rubbers