3517472

Information

• Patent Grant
• 3517472

• References
• Source

• Patent Number

  3,517,472

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1970
  54 years ago

• CPC

  • E06B3/5436 - involving holes or indentations in the pane
  • E06B3/2675 - combined with prefabricated insulating elements
  • E06B3/273 - with prefabricated insulating elements held in position by deformation of portions of the metal frame members
  • E06B3/277 - with prefabricated insulating elements held in position by expansion of the extremities of the insulating elements
  • E06B2003/26309 - using glue
  • E06B2003/26354 - filled
  • Y10S49/01 - Thermal breaks for frames

• US Classifications

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