3811224

Information

• Patent Grant
• 3811224

• References
• Source

• Patent Number

  3,811,224

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • E06B7/32 - Serving doors Passing-through doors; Pet-doors
  • Y10S160/08 - Flexible door

• US Classifications

  • 049 - Movable or removable closures
  • 160 - Flexible or portable closure, partition, or panel