2764494

Information

• Patent Grant
• 2764494

• References
• Source

• Patent Number

  2,764,494

• Date Filed

  Not available

• Date Issued

  Tuesday, September 25, 1956
  68 years ago

• CPC

  • D21H17/68 - siliceous
  • D21H5/0025 - by contact with a device carrying the treating material
  • D21H21/34 - Ignifugeants

• US Classifications

  • 501 - Compositions: ceramic