3440922

Information

• Patent Grant
• 3440922

• References
• Source

• Patent Number

  3,440,922

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1969
  55 years ago

• CPC

  • B21K1/46 - with heads
  • F16B4/006 - Shrinkage connections
  • F16B35/00 - Screw-bolts Stay-bolts Screw-threaded studs Screws Set screws
  • Y10S411/924 - Coupled nut and bolt

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 470 - Threaded, headed fastener, or washer making: process and apparatus