3854693

Information

• Patent Grant
• 3854693

• References
• Source

• Patent Number

  3,854,693

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1974
  50 years ago

• CPC

  • E04C3/08 - with apertured web
  • E04G11/56 - of telescopic type
  • E04G17/042 - being tensioned by threaded elements
  • E04C2003/0413 - being built up from several parts
  • E04C2003/0417 - demountable
  • E04C2003/0434 - the open cross-section free of enclosed cavities
  • E04C2003/046 - L- or T-shaped
  • E04C2003/0473 - U- or C-shaped
  • E04C2003/0482 - Z- or S-shaped
  • E04C2003/0486 - Truss like structures composed of separate truss elements
  • E04C2003/0491 - the truss elements being located in one single surface or in several parallel surfaces

• US Classifications

  • 249 - Static molds