3490178

Information

• Patent Grant
• 3490178

• References
• Source

• Patent Number

  3,490,178

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1970
  55 years ago

• CPC

  • E06B7/231 - with a solid sealing part
  • E06B3/16 - Hollow frames of special construction
  • E06B3/40 - with a vertical or horizontal axis of rotation not at one side of the opening
  • E06B3/60 - of clamping cleats of metal
  • E06B3/605 - made of sheet metal
  • E06B3/362 - Double winged doors or windows

• US Classifications

  • 049 - Movable or removable closures
  • 052 - Static structures