3508891

Information

• Patent Grant
• 3508891

• References
• Source

• Patent Number

  3,508,891

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1970
  55 years ago

• CPC

  • D04H1/4218 - Glass fibres
  • C04B28/26 - Silicates of the alkali metals
  • C04B41/0072 - Heat treatment
  • C04B41/009 - characterised by the material treated
  • C04B41/60 - of only artificial stone
  • D04H1/645 - Impregnation followed by a solidification process
  • Y10T428/2964 - Artificial fiber or filament

• US Classifications

  • 065 - Glass manufacturing
  • 428 - Stock material or miscellaneous articles