3086323

Information

• Patent Grant
• 3086323

• References
• Source

• Patent Number

  3,086,323

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1963
  62 years ago

• CPC

  • E04D13/17 - Ventilation of roof coverings not otherwise provided for
  • E04B1/7007 - by using electricity
  • E04B1/7612 - in combination with an air space
  • F24F7/00 - Ventilation
  • F24F7/04 - with ducting systems also by double walls; with natural circulation
  • F24F2007/004 - Natural ventilation using convection

• US Classifications

  • 052 - Static structures