3792556

Information

• Patent Grant
• 3792556

• References
• Source

• Patent Number

  3,792,556

• Date Filed

  Not available

• Date Issued

  Tuesday, February 19, 1974
  50 years ago

• CPC

  • E05F3/22 - Additional arrangements for closers
  • E04D13/0354 - the parts being flat
  • E05C17/30 - of extensible
  • E05F1/123 - with a torsion bar
  • F24F7/02 - Roof ventilation
  • E05Y2900/152 - Roof windows
  • F24F2011/0097 - opening air passage in case of fire, excessive heat or smoke

• US Classifications

  • 052 - Static structures
  • 049 - Movable or removable closures