3435579

Information

• Patent Grant
• 3435579

• References
• Source

• Patent Number

  3,435,579

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1969
  55 years ago

• CPC

  • E04B2/78 - characterised by special cross-section of the frame-members as far as important for securing wall panels to a framework with or without the help of cover-strips
  • E04B2/967 - Details of the cross-section of the mullions or transoms
  • E06B3/6205 - having on at least one lateral side no backing from a separate rigid glazing bead or other stiff part of the window frame
  • E06B2003/6214 - specially adapted for glazing bars
  • E06B2003/6226 - with locking strips
  • E06B2003/6229 - with grooves anchoring the cleat on a rim
  • Y10S49/01 - Thermal breaks for frames

• US Classifications

  • 052 - Static structures
  • 049 - Movable or removable closures