3707815

Information

• Patent Grant
• 3707815

• References
• Source

• Patent Number

  3,707,815

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1973
  53 years ago

• CPC

  • E04B1/4107 - Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface
  • E04B1/4185 - for cavity walls with both wall leaves made of masonry
  • E06B1/003 - Cavity wall closers; Fastening door or window frames in cavity walls
  • E06B1/02 - Base frames
  • E06B1/6038 - specially adapted for being embedded in the wall

• US Classifications

  • 052 - Static structures