3737964

Information

• Patent Grant
• 3737964

• References
• Source

• Patent Number

  3,737,964

• Date Filed

  Not available

• Date Issued

  Tuesday, June 12, 1973
  51 years ago

• CPC

  • B21D47/02 - by expanding
  • E04C3/083 - Honeycomb girders; Girders with apertured solid web
  • E04C3/292 - the materials being wood and metal
  • E04C2003/0413 - being built up from several parts
  • E04C2003/0421 - comprising one single unitary part
  • 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
  • E04C2003/0465 - square- or rectangular-shaped
  • Y10T29/18 - Expanded metal making
  • Y10T29/49625 - Openwork, e.g., a truss, joist, frame, lattice-type or box beam

• US Classifications

  • 029 - Metal working
  • 052 - Static structures