2221712

Information

• Patent Grant
• 2221712

• References
• Source

• Patent Number

  2,221,712

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1940
  84 years ago

• CPC

  • E05F11/00 - Man-operated mechanisms for operating wings, including those which also operate the fastening
  • E05F2700/04 - Devices for blocking sliding windows in general
  • Y10T292/0893 - Spring retracted
  • Y10T292/0999 - Spring retracted

• US Classifications

  • 292 - Closure fasteners