1412504

Information

• Patent Grant
• 1412504

• References
• Source

• Patent Number

  1,412,504

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1922
  102 years ago

• CPC

  • E01C5/22 - made of units composed of a mixture of materials covered by two or more of groups E01C5/008 , E01C5/02 - E01C5/20 except embedded reinforcing materials
  • E01C5/00 - Pavings made of prefabricated single units
  • E01C5/08 - Reinforced units with steel frames
  • E01C9/02 - Wheel tracks
  • E01C9/06 - Pavings adjacent tramways rails; Pavings comprising railway tracks
  • E01C11/229 - Shallow gutters

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 052 - Static structures
  • 104 - Railways
  • 238 - Railways: surface track