3087565

Information

• Patent Grant
• 3087565

• References
• Source

• Patent Number

  3,087,565

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1963
  61 years ago

• CPC

  • E04B1/82 - specifically with respect to sound only
  • F16F1/3605 - characterised by their material
  • F16F1/377 - having holes or openings
  • F16F1/52 - loaded in combined stresses
  • E04B2001/8461 - layered
  • E04B2001/849 - Groove or slot type openings
  • F16F2236/12 - loaded in combined stresses
  • Y10T428/24149 - Honeycomb-like

• US Classifications

  • 181 - Acoustics
  • 428 - Stock material or miscellaneous articles