1821390

Information

• Patent Grant
• 1821390

• References
• Source

• Patent Number

  1,821,390

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  93 years ago

• CPC

  • C04B41/009 - characterised by the material treated
  • C04B28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder
  • C04B41/5014 - containing sulfur in the anion
  • Y10T428/2958 - Metal or metal compound in coating
  • Y10T428/2971 - Impregnation
  • Y10T428/31656 - With metal layer

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 174 - Electricity: conductors and insulators
  • 427 - Coating processes