3258797

Information

• Patent Grant
• 3258797

• References
• Source

• Patent Number

  3,258,797

• Date Filed

  Not available

• Date Issued

  Tuesday, July 5, 1966
  58 years ago

• CPC

  • F16B25/0047 - the ridge being characterised by its cross-section in the plane of the shaft axis
  • B21H3/10 - twist-drills screw-taps
  • B23G7/02 - Tools for this purpose
  • F16B25/0021 - the material being metal
  • F16B25/0057 - the screw having distinct axial zones
  • F16B25/0078 - with a shaft of non-circular cross-section or other special geometric features of the shaft
  • F16B35/041 - Specially-shaped shafts
  • Y10T408/352 - including rotating cutter other than rotating, axially moving Tool

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • 408 - Cutting by use of rotating axially moving tool
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener