3438421

Information

• Patent Grant
• 3438421

• References
• Source

• Patent Number

  3,438,421

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1969
  55 years ago

• CPC

  • E06B9/0623 - Grilles
  • E06B3/94 - Doors of the bellows type
  • E06B9/0661 - Lazy tongue, pantograph or scissor-like systems in the plane of the opening
  • E06B9/0692 - comprising flexible sheets as closing screen

• US Classifications

  • 160 - Flexible or portable closure, partition, or panel