2227874

Information

• Patent Grant
• 2227874

• References
• Source

• Patent Number

  2,227,874

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1941
  84 years ago

• CPC

  • B60R3/04 - with provisions for shoe scraping
  • B61D17/14 - with gangways
  • E04C2/427 - Expanded metal or other monolithic gratings
  • Y10T428/12361 - having aperture or cut
  • Y10T428/12993 - Surface feature [e.g., rough, mirror]

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 052 - Static structures
  • 105 - Railway rolling stock
  • 172 - Earth working