3878032

Information

• Patent Grant
• 3878032

• References
• Source

• Patent Number

  3,878,032

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  49 years ago

• CPC

  • E04C2/34 - composed of two or more spaced sheet-like parts
  • E04B1/86 - slab-shaped
  • E04F13/141 - with an outer layer of concrete
  • E04B2001/8263 - Mounting of acoustical elements on supporting structure
  • E04B2001/8461 - layered
  • E04B2001/8466 - with an intermediate layer formed of lines or dots of elastic material
  • Y10T428/24025 - Superposed movable attached layers or components
  • Y10T428/24744 - Longitudinal or transverse tubular cavity or cell
  • Y10T428/24851 - Intermediate layer is discontinuous or differential

• US Classifications

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