2238929

Information

• Patent Grant
• 2238929

• References
• Source

• Patent Number

  2,238,929

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1941
  83 years ago

• CPC

  • C07C309/17 - containing carboxyl groups bound to the carbon skeleton
  • C07C305/06 - Hydrogenosulfates
  • C07C309/28 - having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton

• US Classifications

  • 554 - Organic compounds
  • 209 - Classifying, separating, and assorting solids
  • 516 - Colloid systems and wetting agents