3222709

Information

• Patent Grant
• 3222709

• References
• Source

• Patent Number

  3,222,709

• Date Filed

  Not available

• Date Issued

  Tuesday, December 14, 1965
  59 years ago

• CPC

  • E05F3/106 - with crank-arm transmission between driving shaft and piston within the closer housing
  • E05Y2600/41 - Concealed
  • E05Y2600/45 - in or on the fixed frame
  • E05Y2900/132 - Doors
  • Y10T16/2774 - Floor pivot
  • Y10T16/2777 - Multiple piston

• US Classifications

  • 016 - Miscellaneous hardware