3890750

Information

• Patent Grant
• 3890750

• References
• Source

• Patent Number

  3,890,750

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1975
  49 years ago

• CPC

  • E04B5/263 - with a flat lower surface
  • E04B1/30 - the supporting parts being composed of two or more materials Composite steel and concrete constructions
  • E04B5/29 - the prefabricated parts of the beams consisting wholly of metal

• US Classifications

  • 052 - Static structures
  • 249 - Static molds