3788013

Information

• Patent Grant
• 3788013

• References
• Source

• Patent Number

  3,788,013

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1974
  51 years ago

• CPC

  • F24F7/02 - Roof ventilation
  • F24F2011/0097 - opening air passage in case of fire, excessive heat or smoke
  • Y10T292/081 - Swinging and hooked end

• US Classifications

  • 052 - Static structures
  • 049 - Movable or removable closures
  • 292 - Closure fasteners