1986348

Information

• Patent Grant
• 1986348

• References
• Source

• Patent Number

  1,986,348

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1935
  90 years ago

• CPC

  • C01C3/0204 - from formamide or from ammonium formate
  • B01J19/243 - spirally, concentrically or zigzag wound
  • C01C3/002 - Synthesis of metal cyanides or metal cyanamides from elementary nitrogen and carbides
  • B01J2219/00083 - Coils
  • B01J2219/00135 - Electric resistance heaters
  • B01J2219/00155 - using insulating materials or refractories
  • B01J2219/00772 - in a helix

• US Classifications

  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
  • 204 - Chemistry: electrical and wave energy
  • 219 - Electric heating
  • 423 - Chemistry of inorganic compounds