2989363

Information

• Patent Grant
• 2989363

• References
• Source

• Patent Number

  2,989,363

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1961
  63 years ago

• CPC

  • D06M11/55 - with sulfur trioxide with sulfuric acid or thiosulfuric acid or their salts
  • D06P1/65143 - Compounds containing acid anhydride or acid halide groups
  • D06P1/67375 - with sulfur-containing anions
  • D06P3/52 - polyesters
  • D06P3/54 - using dispersed dyestuffs
  • Y10S8/04 - Polyester fibers

• US Classifications

  • 008 - Bleaching and dyeing
  • 528 - Synthetic resins or natural rubbers