2827003

Information

• Patent Grant
• 2827003

• References
• Source

• Patent Number

  2,827,003

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1958
  67 years ago

• CPC

  • E04D13/0352 - the parts being of domed or pyramidal shape
  • Y10T16/84 - Spring

• US Classifications

  • 052 - Static structures
  • 016 - Miscellaneous hardware
  • 049 - Movable or removable closures
  • 220 - Receptacles
  • 454 - Ventilation