1972390

Information

• Patent Grant
• 1972390

• References
• Source

• Patent Number

  1,972,390

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1934
  90 years ago

• CPC

  • C04B14/204 - expanded
  • C04B20/068 - Selection of ingredients added before or during the thermal treatment
  • C04B20/10 - Coating or impregnating
  • Y10S71/904 - Carrier
  • Y10S106/03 - Mica
  • Y10S264/63 - Processes of molding porous blocks

• US Classifications

  • 427 - Coating processes
  • 071 - Chemistry: fertilizers
  • 106 - Compositions: coating or plastic
  • 252 - Compositions
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 428 - Stock material or miscellaneous articles