3020184

Information

• Patent Grant
• 3020184

• References
• Source

• Patent Number

  3,020,184

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1962
  62 years ago

• CPC

  • E04B1/8409 - sheet-shaped
  • B27N3/00 - Manufacture of substantially flat articles
  • B60R13/0815 - Acoustic or thermal insulation of passenger compartments
  • E04B2001/8461 - layered
  • E04B2001/8466 - with an intermediate layer formed of lines or dots of elastic material
  • E04B2001/8471 - with non-planar interior transition surfaces between layers
  • E04B2001/8476 - with acoustical cavities, with or without acoustical filling
  • Y10T428/24331 - including nonapertured component
  • Y10T428/24826 - Spot bonds connect components
  • Y10T428/31815 - Of bituminous or tarry residue
  • Y10T428/31826 - Of natural rubber

• US Classifications

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