2690878

Information

• Patent Grant
• 2690878

• References
• Source

• Patent Number

  2,690,878

• Date Filed

  Not available

• Date Issued

  Tuesday, October 5, 1954
  70 years ago

• CPC

  • F16B13/02 - in one piece with protrusion or ridges on the shaft
  • E01B9/16 - for wooden sleepers
  • F16B13/142 - characterised by the composition of the setting material or mixture
  • Y10S411/922 - Nail, spike or tack having locking device
  • Y10T29/49732 - by attaching repair preform, e.g., remaking, restoring, or patching
  • Y10T29/49746 - by applying fluent material, e.g., coating, casting

• US Classifications

  • 238 - Railways: surface track
  • 029 - Metal working
  • 052 - Static structures
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener