2224940

Information

• Patent Grant
• 2224940

• References
• Source

• Patent Number

  2,224,940

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1940
  84 years ago

• CPC

  • E01B9/08 - Elastic spikes
  • Y10S411/923 - Nail, spike or tack having specific head structure

• US Classifications

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