2981630

Information

• Patent Grant
• 2981630

• References
• Source

• Patent Number

  2,981,630

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1961
  63 years ago

• CPC

  • D21H19/40 - siliceous
  • B01J13/0034 - Additives
  • B01J13/0073 - Preparation of non-Newtonian sols
  • B01J13/206 - Hardening; drying
  • Y10S507/904 - Process of making fluids or additives therefor

• US Classifications

  • 106 - Compositions: coating or plastic
  • 209 - Classifying, separating, and assorting solids
  • 210 - Liquid purification or separation
  • 501 - Compositions: ceramic
  • 507 - Earth boring, well treating, and oil field chemistry