3865307

Information

• Patent Grant
• 3865307

• References
• Source

• Patent Number

  3,865,307

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1975
  49 years ago

• CPC

  • E01B9/12 - Retaining or locking devices for spikes or screws
  • F16B15/04 - with spreading shaft
  • Y10S411/922 - Nail, spike or tack having locking device

• US Classifications

  • 238 - Railways: surface track
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener