2809074

Information

• Patent Grant
• 2809074

• References
• Source

• Patent Number

  2,809,074

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1957
  67 years ago

• CPC

  • A62C35/58 - Pipe-line systems
  • A62C3/00 - Fire prevention, containment or extinguishing specially adapted for particular objects or places
  • E04B1/943 - elongated
  • E04C3/08 - with apertured web
  • E04C3/10 - prestressed
  • E04C3/294 - of concrete combined with a girder-like structure extending laterally outside the element
  • E04B2001/949 - Construction elements filled with liquid
  • E04C2003/0495 - the truss elements being located in several non-parallel surfaces

• US Classifications

  • 239 - Fluid sprinkling, spraying, and diffusing
  • 052 - Static structures
  • 169 - Fire extinguishers