3380206

Information

• Patent Grant
• 3380206

• References
• Source

• Patent Number

  3,380,206

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1968
  56 years ago

• CPC

  • E04B9/0442 - having a honeycomb core
  • E04B9/001 - characterised by provisions for heat or sound insulation
  • E04B9/0485 - containing a filling element
  • Y10S493/966 - Honeycomb structure
  • Y10T428/236 - Honeycomb type cells extend perpendicularly to nonthickness layer
  • Y10T428/24165 - Hexagonally shaped cavities
  • Y10T428/24273 - including aperture

• US Classifications

  • 052 - Static structures
  • 181 - Acoustics
  • 428 - Stock material or miscellaneous articles
  • 493 - Manufacturing container or tube from paper