2801688

Information

• Patent Grant
• 2801688

• References
• Source

• Patent Number

  2,801,688

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1957
  67 years ago

• CPC

  • E06B3/726 - of metal
  • E06B3/24 - specially adapted for double glazing
  • E06B3/2605 - with frames permanently mounted behind or within each other, each provided with a pane or screen
  • E06B3/7009 - Door leaves with two similar parts placed one above the other, pivoting separately
  • E06B2003/2615 - Frames made of metal

• US Classifications

  • 160 - Flexible or portable closure, partition, or panel
  • 049 - Movable or removable closures