3491800

Information

• Patent Grant
• 3491800

• References
• Source

• Patent Number

  3,491,800

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1970
  55 years ago

• CPC

  • F24F13/0209 - characterised by their connecting mens
  • E21F1/04 - Air ducts
  • E21F1/06 - Duct connections
  • F16L11/122 - Hoses provided with integrated fixing means
  • F16L31/00 - Arrangement for connecting hoses to one another or to flexible sleeves
  • F24F13/0218 - Flexible soft ducts
  • Y10T24/2775 - having opposed structure formed from distinct filaments of diverse shape to those mating therewith

• US Classifications

  • 138 - Pipes and tubular conduits
  • 024 - Buckles, buttons, clasps, etc.