3381439

Information

• Patent Grant
• 3381439

• References
• Source

• Patent Number

  3,381,439

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1968
  57 years ago

• CPC

  • E04C3/086 - of the castellated type
  • E04C3/09 - at least partly of bent or otherwise deformed strip- or sheet-like material
  • E04C3/32 - of metal
  • E04C2003/0413 - being built up from several parts
  • E04C2003/043 - the hollow cross-section comprising at least one enclosed cavity
  • E04C2003/0434 - the open cross-section free of enclosed cavities
  • E04C2003/0452 - H- or I-shaped
  • E04C2003/0469 - triangular-shaped
  • E04C2003/0482 - Z- or S-shaped

• US Classifications

  • 052 - Static structures