3396684

Information

• Patent Grant
• 3396684

• References
• Source

• Patent Number

  3,396,684

• Date Filed

  Not available

• Date Issued

  Tuesday, August 13, 1968
  56 years ago

• CPC

  • F27D1/025 - Roofs supported around their periphery
  • F23M5/06 - Crowns or roofs for combustion chambers
  • F27B3/00 - Hearth-type furnaces
  • F27D1/021 - Suspended roofs
  • F27D1/08 - Bricks or blocks with internal reinforcement or metal backing

• US Classifications

  • 110 - Furnaces
  • 052 - Static structures
  • 264 - Plastic and nonmetallic article shaping or treating: processes