2253298

Information

• Patent Grant
• 2253298

• References
• Source

• Patent Number

  2,253,298

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1941
  83 years ago

• CPC

  • E04C1/40 - built-up from parts of different materials
  • B28B11/06 - with powdered or granular material
  • B28B11/0818 - for roughening, profiling, corrugating
  • E04B2002/0271 - Building elements with the appearance of rock layers
  • Y10T428/24421 - Silicon containing
  • Y10T428/2443 - Sand, clay, or crushed rock or slate
  • Y10T428/24521 - with component conforming to contour of nonplanar surface

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 052 - Static structures
  • 144 - Woodworking