3641142

Information

• Patent Grant
• 3641142

• References
• Source

• Patent Number

  3,641,142

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1972
  52 years ago

• CPC

  • D06M13/203 - Unsaturated carboxylic acids Anhydrides, halides or salts thereof
  • C07C51/58 - Preparation of carboxylic acid halides
  • C07C57/76 - containing halogen outside the carbonyl halide group
  • C09B57/00 - Other synthetic dyes of known constitution
  • C09B62/78 - with other reactive groups

• US Classifications

  • 562 - Organic compounds