3703793

Information

• Patent Grant
• 3703793

• References
• Source

• Patent Number

  3,703,793

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1972
  52 years ago

• CPC

  • E04B1/84 - Sound-absorbing elements
  • E04B1/98 - against vibrations or shocks against mechanical destruction
  • E04F15/20 - for sound insulation
  • E04B2001/747 - Corrugated materials
  • E04B2001/8254 - Soundproof supporting of building elements
  • Y10T428/24512 - Polyurethane
  • Y10T428/24702 - with locally deformed crests or intersecting series of corrugations
  • Y10T428/24744 - Longitudinal or transverse tubular cavity or cell
  • Y10T428/24999 - Inorganic

• US Classifications

  • 052 - Static structures
  • 267 - Spring devices
  • 428 - Stock material or miscellaneous articles