2493501

Information

• Patent Grant
• 2493501

• References
• Source

• Patent Number

  2,493,501

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1950
  75 years ago

• CPC

  • E06B3/40 - with a vertical or horizontal axis of rotation not at one side of the opening
  • E06B3/36 - with a single vertical axis of rotation at one side of the opening, or swinging through the opening
  • E06B3/38 - with a horizontal axis of rotation at the top or bottom of the opening
  • E06B2003/343 - with at least two axes of rotation without additional frame within the wing

• US Classifications

  • 049 - Movable or removable closures