2283822

Information

• Patent Grant
• 2283822

• References
• Source

• Patent Number

  2,283,822

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1942
  82 years ago

• CPC

  • E06B3/5063 - the vertical sliding wings having the possibility of an additional rotational movement
  • E06B3/44 - Vertically-sliding wings
  • E06B2003/4446 - Wood
  • Y10T16/63 - Cord and counterweight
  • Y10T16/714 - Multiple wheel

• US Classifications

  • 049 - Movable or removable closures
  • 016 - Miscellaneous hardware