1491780

Information

• Patent Grant
• 1491780

• References
• Source

• Patent Number

  1,491,780

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1924
  100 years ago

• CPC

  • E05B1/0069 - Sanitary doorknobs or handles
  • Y10S16/904 - Handle means having sanitary characteristic
  • Y10S292/02 - Auxiliary knob slip covers, guards
  • Y10T16/444 - having receptacle within
  • Y10T16/46 - Knob type
  • Y10T292/82 - Knobs

• US Classifications

  • 292 - Closure fasteners
  • 004 - Baths, closets, sinks, and spittoons
  • 016 - Miscellaneous hardware
  • 239 - Fluid sprinkling, spraying, and diffusing
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing