2290728

Information

• Patent Grant
• 2290728

• References
• Source

• Patent Number

  2,290,728

• Date Filed

  Not available

• Date Issued

  Tuesday, July 21, 1942
  82 years ago

• CPC

  • E05B55/12 - the bolt being secured by the operation of a hidden parallel member; Automatic latch bolt deadlocking mechanisms
  • Y10S292/51 - Bolt guides
  • Y10S292/56 - Silencers
  • Y10T70/5504 - Automatic
  • Y10T70/8892 - Silencers or mufflers
  • Y10T292/06 - Adjustable backset
  • Y10T292/0993 - Gear
  • Y10T292/62 - Bolt casings
  • Y10T292/79 - Bolt guards

• US Classifications

  • 292 - Closure fasteners
  • 070 - Locks