2643744

Information

• Patent Grant
• 2643744

• References
• Source

• Patent Number

  2,643,744

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1953
  71 years ago

• CPC

  • E06B3/44 - Vertically-sliding wings
  • E06B3/2605 - with frames permanently mounted behind or within each other, each provided with a pane or screen
  • E06B3/26347 - specially adapted for sliding doors or windows
  • E06B2003/2615 - Frames made of metal
  • E06B2003/26376 - Non-plastic materials
  • E06B2003/4453 - Metal

• US Classifications

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