3580322

Information

• Patent Grant
• 3580322

• References
• Source

• Patent Number

  3,580,322

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  53 years ago

• CPC

  • F27D1/1858 - Doors
  • C10B25/02 - Doors Door frames
  • E06B5/16 - Fireproof doors or similar closures Adaptations of fixed constructions therefor
  • E06B3/80 - flexible

• US Classifications

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